Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 2 - Quiz (Sections 2.1-2.3) - Page 67: 4

Answer

Area of hexagon H: H = $3x^2\sin\theta$

Work Step by Step

This question can be broken down into two parts. First, finding the area of a triangle A as a section of the overall area of the hexagon H. The area of a triangle is known to be: A = $\frac{1}{2}\times b\times h$ Therefore, the area of the hexagon will be: H = 6 $\times A$ This question asks the final answer H to be expressed in terms of x, and $\sin \theta$. To do this we must examine the triangle as a section of the overall hexagon H: Area of triangle = A = $\frac{1}{2}\times b\times h$ b = base = x h = height; $\sin\theta$ = $\frac{h}{x}$; h = $x \times\sin\theta$ Plug in the values of b and h into the equation for A to get: A = $\frac{1}{2}\times x\times (x\times \sin\theta)$ Which can be simplified to: A = $\frac{1}{2}\times x^2\times \sin\theta$ A = $\frac{1}{2}x^2\sin\theta$ Now to find H, we plug A into the equation for H. H = $6 \times A$ H = $6 \times\frac{1}{2}x^2\sin\theta$ H = $3x^2\sin\theta$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.