Using Trigonometry to find Areas of Triangles HSG.SRT.D.9 Grade 11 SBAC 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 11 Mathematics

Lumos StepUp - Smarter Balanced Online Practice and Assessments - Grade 11 Mathematics Using Trigonometry to find Areas of Triangles

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A triangular shaped sail on a boat has sides of length 10 ft and 6 ft with the included angle of 48{}^\circ. Find the area of the sail rounded to the nearest hundredth.
  1. 22.29 ft{}^{2}
  2. 5.95 ft{}^{2}
  3. 44.59 ft{}^{2}
  4. 36.14 ft{}^{2}

Resource: Question

Question Type: Hot Text

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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