SOLUTION: Find the area of a sector of a circle whose diameter is 10 cm and whose central angle is 90 degrees.

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Question 929949: Find the area of a sector of a circle whose diameter is 10 cm and whose central angle is 90 degrees.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Since 90 degrees is 1%2F4 of the circle, the area would be 1%2F4 of the area of a circle.
A=%281%2F4%29pi%2AR%5E2=%281%2F4%29pi%2A%2810%2F2%29%5E2=%281%2F4%29pi%2A25=%2825%2F4%29pi