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Area of Triangles using Heron's Formula WORKSHEET
Suitable for Grades: Geometry, Algebra II
CCSS: HSG.SRT.D.9
CCSS Description: (+) Derive the formula A = 1/2 ab sin(C) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.
Area of Triangles using Heron's Formula WORKSHEET DESCRIPTION
This worksheet is great for learners wishing to practise using the 0.5absinC formula for finding the area of a triangle. It is also available with the added clues to add extra scaffolding. Section A provides some straightforward questions involving finding the area when two sides and the included angle are given and one question where a side is to be found given the area. Section B provides some quadrilaterals of unknown area. Section C and an extension then provide some word problems.
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