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The radius of a circle is 4 feet. What is the area of a sector bounded by a 45° arc?
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The radius of a circle is 4 feet. What is the area of a sector bounded by a 45° arc?
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Feb 22, 2018
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The radius of a circle is 4 feet. What is the area of a sector bounded by a 45° arc?
Mathematics
high-school
Patrick Marchand
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Patrick Marchand
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Sinc the radius of the circle is 4 feet, the area =
. The area would equal
. Then,
would equal 8, and
would equal
Hugo Yates
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Feb 23, 2018
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Hugo Yates
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If u see circle make 360° as a whole
So 45 ° is 1/8th of the entire angle
If u find whole area of a circle= pi×r^2
r=4 ft
A= 16π
So divide it by 8
A= 2π feet^2
Safraz
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Feb 27, 2018
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Safraz
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