SOLUTION: Find the area of a sector of a circle if the central angle measures 90 and the radius measures 4 inches.

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Find the area of a sector of a circle if the central angle measures 90 and the radius measures 4 inches.       Log On


   

Question 937075: Find the area of a sector of a circle if the central angle measures 90 and the radius measures 4 inches.
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
the central angle is 1/4 of 360 ...
therefore, the sector is 1/4 the area of a full circle:
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a = pi*rr
a = 3.1415*4*4*(1/4)
a = 12.566 sq.inches
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