Watch it draw itself · tap to replay
How to Draw a Right Triangle
Draw a right triangle in 11 easy steps, about 8 minutes. Free, with a printable worksheet.
Each picture adds one red line. Draw that line, then scroll to the next picture. Rub out any dashed helper lines at the end. First up: tall and flat sides.
Step 1: Tall and flat sides
Start at the top and draw a line straight down. Turn a square corner and go across to the right.
Tip The 2 lines make a square corner, like the corner of a book.
Step 2: The slanted side
From the top of the tall line, draw one straight slanted line down to the end of the flat line.
Tip A triangle has 3 straight sides and 3 corners.
Step 3: Two big eyes
Inside the triangle, near the square corner, draw 2 big egg eyes side by side with a small gap.
Step 4: Shiny pupils
In each eye, colour a big black dot. Leave a little white shine in it.
Step 5: Big smile
Leave a gap under the eyes, then draw a wide U smile from under one eye to the other.
Step 6: Rosy cheeks
Beside each end of the smile, draw a small sideways oval for a cheek.
Step 7: Right angle sign
In the square corner, draw a tiny square: a short line across, then one down to the flat side.
Tip This little square means the corner is a right angle.
Step 8: Sparkles
In the empty space beside the slanted side, draw 3 sparkle stars, each with 4 points.
Step 9: The floor
Along the flat side, draw a floor line from far left to far right.
Step 10: Pink and yellow
Colour the 2 cheeks pink. Colour the tiny corner square and the 3 sparkles yellow.
Step 11: Green triangle
Go over your lines and colour the triangle green, around the yellow and pink. Leave the eyes white.
Your finished drawing
Follow the steps above and this is where you end up: a right triangle, drawn by you.
Every step in one picture
