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3 years ago

HELP MEEEEEEEEEEEEEEEEEEEEEE!

Mathematics

1 answer:

pentagon [3]3 years ago

8 0

A=πr^2, that is for the total area of the circle. However we only want the area of the sector enclosed by 172° so

A=172πr^2/360, since r=12

A=172π*144/360

A=68.8π u^2

A≈216.14 u^2 (to nearest hundredth of a unit)

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