Answer
a)
r = 50.24
r = 100.48
b) If the diameter doubles, so does the circumference
Work Step by Step
$C = 2 \pi r$
$C = 2 \times 3.14 \times 8 - 50.24$
$C = 2 \times 3.14 \times 16 = 100.48$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 9 - Section 9.2 - Perimeter - Exercise Set - Page 624: 68
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