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

#18-7: Find the radius of a circle that has an area of 4.5216 cm^2. Use 3.14 for pi.
asked 224k views
1 vote
#18-7: Find the radius of a circle that has an area of 4.5216 cm^2. Use 3.14 for pi.

asked
User TimWolla
by
8.7k points

1 Answer

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

answered
User Victor Farazdagi
by
8.5k points
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