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The area of the sector formed by the 110 degree central angle is 50 units What is the circumference of the circle?
Wiki User
∙ 12y ago
Area or sector = r2X/360 where X is the angle (in degrees) and r is the radius.
So 50 square units = r2*110/360
Area of whole circle = pi*r2 = 50*360/11 = 163.6363..
Therefore r2 = 163.6363../pi = 52.0871 so that r = sqrt(52.0871) = 7.2
And then circumference = 2*pi*r = 45.4 units.
Wiki User
∙ 12y ago
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