4 years ago

Find the area of a sector with the given central angle α in a circle of radius r.

1 answer:

8 0

Area = [(a)(pi•r^2)]/360

1. set up a proportion
a/360 (# of ° in circle) = area of circle/ (pi•r^2)

2. cross multiply
360area of circle = (a•pi•r^2)

3. divide

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