Get Full Access to Lumos StepUp - Smarter Balanced Online Practice and Assessments - Grade 10 Mathematics

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160 Lessons

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1613 Questions

156 Standards

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12 Question Types

2 Practice Tests

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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

Get Full Access to Lumos StepUp - Smarter Balanced Online Practice and Assessments - Grade 10 Mathematics

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In \(\Delta MNP,\) the length of side \(m=4\; {\rm ft}\) and the length of side \(p=6\; {\rm ft}.\) The measure of \(\angle N=72{}^\circ .\) What is the area of the triangle, to the nearest square foot?

Question Type: Multiple Choice - Single Answer

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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