Geometry Studio

Drawing

Pick a shape type on the left (Triangle, Square, etc.). Click points on the canvas where you want them. Most shapes need at least 3 points - just keep clicking. When you're done, press F or double-click to finish.

If you want to draw something with a weird number of sides, pick "Freeform" instead. Click however many points you need, then click the first point again to close the shape.

The Numbers

When you draw something, the tool figures out everything automatically. For any shape, you get side lengths, angles, perimeter, and area. For triangles, it also shows you the heights and medians. It identifies what type of triangle it is (equilateral, isosceles, right angle, etc).

Click Select mode and then click on a shape to pick it. The full analysis shows up in the right panel.

Building Instead of Drawing

Don't feel like drawing? Use the BUILDER panel below. Pick a shape type, enter the dimensions in pixels, and it builds a perfect shape. Works for all the common stuff - equilateral triangles, isosceles triangles, right triangles, squares, rectangles, pentagons, hexagons.

Visual Aids

If you want to see what medians or altitudes actually look like visually, flip those checkboxes in the DISPLAY panel. Medians are lines from corners to the midpoint of the opposite side. Altitudes are perpendicular lines from corners. Angle bisectors split angles in half. Circumcircle is the circle that touches all three corners of a triangle. Toggle them on and off to see what they look like.

Moving and Changing Shapes

Select a shape, then use the transform buttons - Rotate (enter degrees), Scale (enter how many times bigger or smaller), or Mirror to flip it. All the calculations update automatically.

Saving

Click the Projects button to save your work. Everything saves to your browser locally - no account, no uploading. Come back later and load your project. You can rename or delete projects too.

Keyboard

F finishes the shape. Z undoes your last point. Q clears everything.