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In a circle a 90 degrees sector has an area of 225 pie in squared What is the radius of the circle?
area = 225 pi = pi R squared/4 R = square root 900 = 30 in
What is the radius of the area 345cm2?
Since area equals Pi times radius squared take and substitute what is known. 345 equals Pi times the radius squared. divide Pi into both sides for 109.8 equals the radius squared. Now take the square root of 109.8 to get an r of 10.47936 cm.
How do you find the radius of a circle if the area is 108?
The radius will be about 5.87 (units). The formula for the area is A = (pi) r2 where pi is about 3.1416 and r is the radius (squared) 108 = 3.1416 (r2) 34.38 = r2 r = about 5.87
What is the radius of a circle with circumference of 8 inches?
C = 2*pi*r 8 = 2*pi*r 4 = pi*r r = 4/pi
What is the formula for the area of the circle?
r2*pi=A π ● r² or pi times the radius squared If you are given the diameter just divide that by 2 giving you the radius. After that square the radius (multiply by it by itself). Then multiply that answer by 3.14 or pi. Area of a circle = pi*radius2
