#18-7: Find the radius of a circle that has an area of 4.5216 cm^2. Use 3.14 for pi.

asked Sep 5, 2020 224k views

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5 votes

Answer:

r = 1.2 cm

Explanation:

Area (A) of a circle = πr²

r² =
(A)/(Pi)

r =
$\sqrt{(A)/(Pi) }$

r =
$\sqrt{(4.5216)/(3.14) }$ = 1.2 cm

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