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MATH SOLVE
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In a circle, a 270 sector has area 675pie in^2. What is the radius of the circle ?
4 months ago
Q:
In a circle, a 270 sector has area 675pie in^2. What is the radius of the circle ?
Accepted Solution
A:
Area of sector = pi r^2 β’ angle/360
Pi r^2β’ 270/360 = 675pi ( cancel pi on both sides)
R^2 β’3/4 = 675
R^2 = 675 β’ 4/3
R^2 = 900
R = square root of 900
R= 30
The radius is 30