Master area formulas for parallelograms, triangles, and composite shapes. Build geometry skills with instant feedback.
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Create Free AccountArea of a parallelogram = base × height. The height must be perpendicular to the base, not the slanted side. For example, a parallelogram with base 8 cm and height 5 cm has area = 8 × 5 = 40 square cm.
Area of a triangle = (1/2) × base × height, or equivalently base × height ÷ 2. A triangle is half of a parallelogram with the same base and height.