A=TTr2
A=3.14 x 22
A=3.14 x 4
A=12.56
Hope this helps
Area = Pi(r)2 - A circle with a radius of 12 centimeters has an area of 452.39 square centimeters.
The formula for the area of a circle is: Area = (pi) x (Radius)2 . When you know the radius of the circle and you use it to calculate the area of the circle, the result will be equal to (pi) x (Radius)2 .
A circle with a radius of 2 cm has an area of 12.57 square cm.
Area of circle = pi*(radius)2
radius = 16/(2*pi)
Area = Pi(r)2 - A circle with a radius of 12 inches has an area of 452.39 square inches.
Area = Pi(r)2 - A circle with a radius of 25 inches has an area of 1,963.5 square inches.
Area = Pi(r)2 - A circle with a radius of 12 centimeters has an area of 452.39 square centimeters.
The area of a circle is equal to that of a triangle whose base has the length of the circle's circumference (distance around the circle) and whose height equals the circle's radius which comes to Pi multiplied by the radius squared. Area of Triangle 1/2 *base*height
The formula for the area of a circle is: Area = (pi) x (Radius)2 . When you know the radius of the circle and you use it to calculate the area of the circle, the result will be equal to (pi) x (Radius)2 .
A circle with a radius of 2 cm has an area of 12.57 square cm.
Area = pi*r2Area = pi(5.29 cm)2= 87.9 cm2=========
Area of circle = pi*(radius)2
4
Well a circle has 360 degrees so a sector of 90 degrees has an area equal to 90/360 (or 1/4) of a circle with the equivalent radius. The area of a circle is defined as PI*Radius^2 so the area of a 90 degree sector will be 1/4*PI*Radius^2. The area will be 1/4*3.14*10^2 or 78.5 in^2.
radius = 16/(2*pi)
radius = 0.75/2 = 0.375