Can You Draw a Perfect Triangle?

Draw in one stroke — close the shape to see your score.

Challenge Difficulty Tiers

Drawing a perfect equilateral triangle freehand requires three equal sides and three precise 60° angles — harder than it sounds!

95%+
Triangle Master
Incredibly rare
85–94%
So Close!
Very impressive
70–84%
Nice Try
Above average
< 70%
Keep Going
Room to improve

How Scoring Works

📐 Shape Fitting

An ideal equilateral triangle is fitted to your drawing, matching your size and rotation automatically.

📏 Deviation Check

Every point you drew is compared to the ideal triangle's perimeter. Closer points score higher.

🎯 Final Score

Your accuracy across all points is combined with a power curve — high scores are exponentially harder to achieve.

Tips for Drawing a Better Triangle

Pause at Corners

Briefly slow down at each vertex to create sharper 60° angles instead of rounded curves.

Equal Sides

Focus on making all three sides the same length. Use the guide triangle as a visual reference.

Steady Speed

Maintain a consistent drawing speed along each side for straighter lines.

Close the Shape

Make sure your ending point connects back to where you started to complete the triangle.

Frequently Asked Questions

How is my triangle score calculated? +
We fit an ideal equilateral triangle to your drawing using a least-squares algorithm. Your score reflects how closely each point of your drawing matches the ideal triangle's perimeter — the closer you stay to a perfect equilateral shape, the higher your score.
Does it have to be equilateral? +
The scoring is based on an equilateral triangle (all sides equal, all angles 60°). You can draw any orientation or size, but the closer your shape is to equilateral, the higher your score.
Why is drawing a perfect triangle so hard? +
Triangles require three sharp 60° corners and three perfectly straight sides. Our hands naturally round off corners and wobble on straight lines, making a perfect triangle extremely difficult freehand.
Does this work on mobile? +
Yes! Draw with your finger on any touchscreen device. The canvas adapts to your screen size automatically.
Any tips for a higher score? +
Pause briefly at each corner to create sharper angles. Draw at a steady speed and focus on making all three sides equal length. The guide triangle on the canvas can help you gauge proportions.