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a circular wall clock with a circumference of 94.2 cm is mounted on a wall. How much area of the wall did it occupy
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a circular wall clock with a circumference of 94.2 cm is mounted on a wall. How much area of the wall did it occupy

User Mike Burton
by
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1 Answer

7 votes
Circumstance = 3.14 • diameter

So…
94.2 = 3.14 • diameter
94.2/3.14 = 30 cm

The diameter is 30 cm, so the radius (1/2 of diameter) would be 15 cm.

Area = 3.14 • radius^2

So…
Area = 3.14 • 15^2
Area = 706.5 cm squared
User Yuriy Piskunov
by
4.2k points
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