Using Trigonometry to find Areas of Triangles HSG.SRT.D.9 Grade Practice Test Questions TOC | Lumos Learning

Using Trigonometry to find Areas of Triangles HSG.SRT.D.9 Question & Answer Key Resources Lumos StepUp - Smarter Balanced Online Practice and Assessments - Grade 10 Mathematics

Lumos StepUp - Smarter Balanced Online Practice and Assessments - Grade 10 Mathematics Using Trigonometry to find Areas of Triangles

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In an isosceles triangle, the two congruent sides have a length of \(15\; {\rm m}.\) The measure of the included angle is \(54{}^\circ .\) To the nearest square meter, what is the area of the triangle?

Resource: Question

Question Type: Drag & Drop

Standard(s):HSG.SRT.D.9

Standard 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.

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