I would appreciate I someone could help me with these questions

asked Mar 20, 2019 71.2k views

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38: it's a right triangle
39:
area:

$a = \pi {r}^(2)$

$a = 3.14 * {10}^(2) = 314$

circumference:

$c = \pi * diameter$

c = 3.14 * 20 = 62.8

Kothvandir answered Mar 26, 2019

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