Triangle pose — Trikonasana — looks simple, doesn’t it? Three points of contact and one long line from your back foot through the crown of your head.
But if you’ve taught a few classes or spent time in different lineages, you know that the same pose can be taught in very different ways. That’s not a problem — it’s a richness. Each approach offers distinct benefits, suits different bodies and intents, and reflects different teaching priorities. As teacher trainers, our job is to see those choices and help students find the version that actually serves them.
The disagreement is real and it’s specific
This isn’t a matter of vague stylistic flavour. The lineages differ on measurable things.
How far apart should the feet be? Iyengar’s method calls for roughly three to three and a half feet, while David Swenson’s Ashtanga notes describe the distance as one leg-length — which for many practitioners lands under three feet. How far should the back foot turn in? In Ashtanga-Vinyasa, the front foot turns out a full 180 degrees while the back foot turns in only slightly — five degrees at most. Elsewhere you’ll be cued to bring it in ten, fifteen, thirty degrees. Should the hips narrow, or broaden?
Yoga Journal once asked five instructors from five traditions to demonstrate Triangle. They got five different poses. Trikonasana appears in nearly every tradition — it is one of the twelve basic poses in Sivananda and one of the twenty-six in Bikram’s series, and both differ substantially from the Ashtanga and Iyengar versions, and from each other.
The pose is taught early precisely because it exposes so much. It is an instant diagnosis: it shows whether the hip opens, whether the torso lengthens, whether the chest can rotate, and whether the breath keeps flowing while the body works in lateral extension. In Ashtanga it opens the standing sequence of the Primary Series. In Iyengar it is among the first poses taught, because it reveals each body’s patterns of alignment and compensation so clearly.
That is why the cueing disagreements matter. You are not choosing a cosmetic preference. You are choosing what the pose will teach.
The five triangles, side by side
| Hatha / studio | Ashtanga | Iyengar | Sivananda | Bikram | |
| Stance width | Comfortable; not prescribed | ~1 leg-length | 3–3.5 ft | Moderate; not prescribed | Wide |
| Front foot | Turned out | Out 180° | Out 90°, carefully aligned | Turned out | Out 90° |
| Back foot | Turned in, loosely | In ~5° max | In 10–15° | Turned in | Near-parallel to mat edge |
| Back hip | Not emphasised | Internally rotated; traction and lift | Kept open to the side | Not emphasised | Open |
| Bottom hand | Floor or shin | Grips the big toe | Floor, shin or block | Shin or ankle | Toward the toes |
| Props | Optional | Rarely used | Central to the method | Rarely used | Not used |
| Primary intent | Accessibility; lateral length | Strength, integration, lift | Joint safety; therapeutic precision | One link in a 12-pose sequence | One link in a fixed 26-pose series |
What doesn’t change
Let’s start with what doesn’t change. In every variation the feet set the foundation, the legs give stability and length, the torso seeks side-body opening, and the arms form opposing lines. The gaze might be up, forward, or down — whatever supports safety and intention.
Above all, we teach length through the spine and even weight through both feet. Forcing depth for the look of the pose is a shortcut that often costs spinal integrity.
Hatha: the approachable entry
The Hatha or “traditional studio” Triangle is approachable: legs mostly straight, the hand often finds the floor or the shin, and there’s not always a fuss about perfect foot alignment. It’s a great introduction to lateral extension and grounding.
What I remind teachers to watch for here is collapsing toward the front hip, or rounding the spine when students simply reach down to touch the floor. Encourage length first.
Ashtanga: traction, not sinking
Ashtanga-influenced Triangle reads differently. The cues favour internal rotation of the back hip, an upward lift through the side body, and a sense of traction rather than sinking. You’ll often hear teachers ask students to root the back heel, draw the inner back thigh up, and imagine creating space between the ribs as the front fingertips reach skyward.
This version is energetic and alignment-driven — it builds strength and a long integrated line through the torso. But it’s not always comfortable for tight hips. Rolling that back hip in demands hip and knee awareness, or you can end up adding unwanted torque.
Worth naming for your trainees: the “rotation” language itself is contested. As the anatomist David Keil puts it, position and action are not the same thing. Anatomically, if the back foot is perpendicular to the mat’s edge, the leg isn’t rotated at all — it is in an adducted position. Turn the foot in, and the hip sits in slight internal rotation, from which you could then engage the external rotators to create an action of external rotation. Lineages that appear to contradict each other are often describing different halves of that sentence.
Iyengar: methodical, and unapologetic about props
Iyengar’s approach feels, well, methodical. The hips are kept more “open” to the side, feet are aligned carefully, and blocks are welcome — often essential. The emphasis is on joint safety and therapeutic precision.
This is an excellent roadmap when you want to create space in the front hip or work within structural limits. Just be aware: the open-hip relationship you teach here shifts the pelvis–spine conversation in a way that looks and feels different from the Ashtanga cues. It’s intentional, not wrong.
The tradition also carries its accessibility work further than most. The fully supported Triangle — the entire side body resting along a chair or a long support — lets a student find optimal alignment without the pressure of balancing at all. For older students, or anyone working with limitation, it isn’t a lesser version. It is the version that teaches.
Sivananda and Bikram: the fixed-sequence traditions
Both Sivananda and Bikram place Triangle inside a set, unvarying sequence — one of twelve basic poses in the former, one of twenty-six in the latter. This changes what the pose is for.
In a fixed series, Trikonasana isn’t a standalone teaching opportunity. It is a link in a chain, arriving at a specific point after specific preparation, and the cueing is written to the sequence rather than to the individual. Bikram’s version in particular diverges enough in shape that some teachers argue it isn’t the same pose at all.
The teaching point for your trainees is this: when a lineage fixes the sequence, it trades adaptability for repeatability. A student meets the identical pose every class and can measure their own change against it. That is a real pedagogical benefit — and it is the mirror image of what Iyengar’s prop work is doing. Neither is careless. They are solving different problems.
Letting intention lead
When you’re deciding what to practise or cue in a class, let intention lead. If a student wants strength, integration and lift, the Ashtanga cues are useful. For hip mobility and therapeutic opening, the Iyengar/open-hip expression will likely serve better. If your aim is accessibility, warming up, or giving students a general sense of lateral length, the traditional Hatha version is generous and effective.
Always factor in anatomy and history. A student with previous hip, knee or sacroiliac concerns will usually benefit from props and an open-hip orientation, or a shorter stance. Tight hamstrings might need a micro-bend in the knee, or a block, so the spine doesn’t round.
And whatever variation you try, test it mindfully: ask students to notice whether they feel length, comfortable pressure, or sharp pinching. If there’s pinching or sharp pain, that’s a sign to stop and modify. Triangle is accessible — but it is not universally safe, and teaching it as though it were is how people get hurt.
Cues that translate across styles
• If someone’s torso is collapsing toward the thigh, lift the hand to a block and focus on lengthening toward the ceiling before lowering.
• If the front hip or knee pinches, shorten the stance or add a micro-bend in the front knee. Sometimes a slight external rotation of the front thigh reduces the pinch.
• To emphasise lift and integration, cue rooting the back heel and drawing the inner back thigh up.
• To emphasise openness and hip mobility, lower the block, let the pelvis face more sideways, and invite breath into the front hip crease.
Props — blocks, straps, a wall — aren’t just aids. They are feedback tools that increase safety and clarity.
A few ethical reminders
Don’t push a stylistic “ideal.” Invite exploration instead of compliance.
In any class, offer clear options — one access point, one therapeutic choice, and one more engaged expression. And personalise cues to the student’s pelvis, femur angle and comfort. A single cue rarely fits everyone.
This isn’t a soft aspiration, incidentally. Yoga Alliance’s RYS standards require registered schools to cover contraindications, misalignments and adaptations, and to teach safe movement as it pertains to balancing, stretching, awareness and physical limitations. Teaching one ideal shape to a room of different skeletons isn’t just unkind. It falls short of the standard.
Common questions from trainees
Should the back foot turn in 5, 15, or 30 degrees?
All three are taught. Ashtanga cues five degrees at most; Iyengar typically ten to fifteen. The angle you choose changes the hip’s rotational position, which changes what the pose can teach. Pick the angle that serves your intention — and be able to say why.
Is the back leg internally or externally rotated?
Both, depending on whether you mean position or action — and this is where lineages appear to contradict each other but don’t. With the back foot perpendicular to the mat edge, the leg is in an adducted position with no rotation. Turn the foot in, and the hip sits in slight internal rotation, from which the external rotators can be actively engaged.
Should the bottom hand reach the floor?
No — not as a goal in itself. Reaching for the floor is the most common cause of spinal rounding and front-hip collapse in this pose. Teach length first; let the hand land wherever length ends.
Is Triangle safe for everyone?
No. It is accessible, but not universally safe. Students with hip, knee or sacroiliac history need props, an open-hip orientation, or a shorter stance.
Teach with curiosity
At the end of the day, Triangle is a family of practices, not one fixed shape. The differences between “closed hip” and “open hip,” floor hand and block, or Ashtanga and Iyengar cues aren’t battles to be won — they are choices to be made.
Encourage your students to pause, feel, and ask: what is my intention right now? Which version supports that intention and honours my anatomy?
There’s a place for all forms. Teach — and practise — with curiosity, clarity and compassion.
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