Area = pi * radius squared
1)
A = 3.14 * 8.5^2
A = 3.14 * 72.25
A = 226.865 square inches
I'll be glad to check your answers for the other two problems.
1.) Calculate the area of a circle with radius 8.5 inches. . 2.) Calculate the area of a circle with the diameter 15 feet. . 3.) Calculate the area of a circle with radius 9 feet
2 answers
Area of a circle is given by
A=πr²
where π=3.1416 approximately
So with a radius of 8.5 inches, the area of the circle is
A=π8.5²=72.25π sq. inches.
Remember to include the units.
If you are given a diameter, divide the diameter by two to get the radius, and proceed as above.
A=πr²
where π=3.1416 approximately
So with a radius of 8.5 inches, the area of the circle is
A=π8.5²=72.25π sq. inches.
Remember to include the units.
If you are given a diameter, divide the diameter by two to get the radius, and proceed as above.
4 answers