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PLZZZZ HELP!!XC The diameter of a coin is 22mm. What is the approximate area of the coin? A. 34.54mm to the power of 2 B. 69.08mm to the power of 2 C. 94.99mm to the power of 2 D. 379.94mm to the power
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PLZZZZ HELP!!XC

The diameter of a coin is 22mm.
What is the approximate area of the coin?

A. 34.54mm to the power of 2

B. 69.08mm to the power of 2

C. 94.99mm to the power of 2

D. 379.94mm to the power of 2

User Robertdj
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7.5k points

1 Answer

3 votes
Diameter = 22 mm
Radius = diameter/2 = 22/2 = 11 mm
Area = pi r^2
Area = pi (11^2) = 380.133 mm^2

No option corresponds to the answer 380.133

If we round off 380.133 and 379.94 it then becomes 380. So answer D.
User John R Perry
by
7.4k points
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