Updated October 2026
"Triangle" is the mirror image of the heart-shape check in the analyzer's classifier — it looks for a jaw that's clearly wider than the forehead. Here's exactly what triggers it and how to style it.
As with every result on this site, that measurement comes from a photo processed entirely on your device via MediaPipe's on-device model — it's never uploaded, stored, or seen by anyone but you. See the privacy policy for the full picture.
Triangle requires your jaw-to-cheek width ratio to be above 1.08 and your forehead-to-cheek ratio to be below 0.90 — the exact inverse of the heart condition. In plain terms: your jaw measures more than 8% wider than your cheekbones, while your forehead measures more than 10% narrower than your cheekbones. The face is widest at the bottom and narrows toward the top — the opposite taper direction from heart.
Like the heart check, both halves of this condition have to be true together. A naturally strong jaw with an average forehead width wouldn't trigger triangle on its own — the classifier is specifically looking for the combined "wide jaw, narrow forehead" taper, not just one feature in isolation. This is also checked early in the sequence (second, right after heart), since it's a distinctive pattern best identified before the more general length-based checks run.
Styles with volume or width added near the temples and crown are commonly used to visually balance a triangle face's wider jaw. A side part with some height, or layers that add fullness starting above the cheekbones, can shift visual weight upward. Chin-length or jaw-length cuts with no volume higher up tend to add width exactly where the face is already widest, emphasizing the taper rather than balancing it.
If you're trying to understand the shape categories as a set, triangle and heart are deliberately symmetric opposites in this tool's logic: heart is "wide top, narrow bottom," triangle is "narrow top, wide bottom." Comparing your own forehead-to-cheek and jaw-to-cheek numbers (shown in the result panel) against both pages can make the geometry concrete rather than abstract.
Since this measurement depends on accurately locating both forehead and jaw edges, hair covering your temples or jawline can shift the detected widths. For the most representative result, keep hair off both your forehead and jaw and face the camera directly — see the full photo guide for specifics.
Is "triangle" the same as what some guides call "pear-shaped"? Yes — different style guides use different names for the same wide-jaw, narrow-forehead pattern; this tool uses "triangle."
Why wasn't my face classified as square instead? Square requires length-to-width at or below 1.25 and a high jaw-taper ratio, but doesn't require a wide-jaw/narrow-forehead imbalance — triangle is checked first specifically because that imbalance, when present, is considered the more defining feature.
Can jaw clenching or expression affect this? A strong jaw-clench can slightly shift the visible jawline in a photo; a neutral, relaxed expression gives the most consistent landmark placement.