Geometry: Common Core (15th Edition)

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

Chapter 1 - Tools of Geometry - 1-8 Perimeter, Circumference, and Area - Lesson Check: 1

Answer

Perimeter is $20\ in$. Area is $21\ in^2$.

Work Step by Step

base(b)= 3 in height (h) = 7 in Use the formula for perimeter, and substitute the given values. $P=2b+2h=2(3)+2(7)=6+14=20$ Use the formula for area and substitute the given values. $A=bh=(3)(7)=21$
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