2D Area & Perimeter

Calculate perimeters and areas of triangles, quadrilaterals, circles, and compound shapes.

Area of 2D Shapes

Calculate areas of triangles, parallelograms, trapeziums, and compound shapes using the correct formulas.

Circles — Area and Circumference

Calculate the area and circumference of circles, and find arc lengths and sector areas for portions of a circle.

Perimeter Problems Including Arcs

Find the perimeters of compound shapes that include curved sections, by combining straight edges with arc lengths.