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What the radius of a circle with an area of 64 square feet

What the radius of a circle with an area of 64 square feet
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What the radius of a circle with an area of 64 square feet

asked
User Petrov
by
7.9k points

2 Answers

1 vote

Answer:

4.51 ft

Explanation:

answered
User Diego Plentz
by
7.8k points
4 votes
a=pir²
64=pir²
divide both sides by pi
64/pi=r²
sqrt both sides
8/√pi=r
(8√pi)/pi=r
aprox
4.51352=r

about 4.5ft is the radius
answered
User FBente
by
7.8k points
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