Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Common Core End-of-Course Assessment - Page 880: 40

Answer

$\bf{F}$

Work Step by Step

We will use the cosine formula to compute the distance from home to school. $c^2=a^2+b^2-2ab \cos (C)$ Here, $a=5; b=8; c=87^{\circ}$ So, $c^2=(5)^2+(8)^2-2\times 5 \times 8 \cos (87^{\circ}) \approx 9 \ min$ Therefore, the correct option is $\bf{F}$.
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