Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapters 1-9 - Cumulative Review Exercises - Page 703: 21

Answer

The figure is a right angled triangle. The perimeter is $56$ miles and the area is $84$ sq miles.

Work Step by Step

1. Find the name of the figure: Right angled triangle 2. Find the perimeter of the triangle Let $P =$ the perimeter $P = a + b + c$ $P = 7 + 24 + 25$ $P = 56$ miles 3. Find the area of the triangle Let $A=$ area of the triangle $A = (base \times height) \div 2$ $A = (7 \times 24) \div 2$ $A = 168 \div 2$ $A = 84$ sq miles
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