Area of a circle is pi r^2 diameter is twice the radius. 3.14*8*8=64*pi or approximately 200.96
A circle with a radius of 5 units has an area of 78.54 square units.
A=pi times R squared If the radius is 5, the area is 25pi
true
Area = circumference squared... You do circumference divided by 4,... and then divide that by Pi.
the radius of a cirle is what percent of the diameter
The area of a cirle is: PI * r2 Where "r" is the radius, and PI is approximately 3.14. Hint: A radius is half of the diameter.
The formula is pi (3.14) x radius x radius 3.14 x 12 x 12 = 446.4
Yes.
To find the area of a cirle you multiple pi (3.14) by the radius squared, so you would have to find 3.14 times 4, which is 15.7.
pi*radius squared
Area of a circle is pi r^2 diameter is twice the radius. 3.14*8*8=64*pi or approximately 200.96
The line from the centre of the circle to any point on its circumference
circumference of a circle = 2*pi*radius or pi*diameter
The area is 346.639 cm2
A circle with a radius of 5 units has an area of 78.54 square units.
Area of a circle with radius r = pir2Area of the largest circle = Area of the smallest circle + Area of the shaded regionSince areas of the smallest circle and the shaded region are 9pi and 72pi, the Area, A, of the largest circle isA = 9pi + 72pi = 81pi, where r2 = 81.Thus, the radius of the largest circle is 9