Geometry
Area formulas (including Heron's formula)
Standard area formulas for triangles, quadrilaterals, and regular polygons, plus Heron's formula √(s(s-a)(s-b)(s-c)) for a triangle given three sides.
0
Contest appearances
100
Practice problems
1–10
Difficulty levels
Drill this topic
Sign in and tell the coach to drill this knowledge point — it picks questions matched to your current level.