Plane Geometry & Area

Before you begin

This workbook has 80 questions arranged in 4 sets of 20, mixing all five units together and growing gradually harder. Answer at your own pace — every question gives an instant hint, explanation, and (when you're right) a little celebration.

• G1 Sorting triangles & quadrilaterals by sides, angles, and symmetry
• G2 Plotting and measuring shapes on the coordinate plane
• G3 How squares, rectangles, rhombuses & parallelograms relate
• G4 Perimeter and area formulas for four core shapes
• G5 Finding area using vertex coordinates

Start the Workbook →

The timer auto-submits your test when time runs out. Only the questions you've answered will be scored.