A circle with a 12 inch diameter has a 6 inch radius.
circumference= pi(3.14) by the diameter. if your given the radius, double the radius and times by pi.
The Diameter of a Circle is twice the Radius.thus for a 52 inch Diameter Circle the Radius will be 52/2=26 inches.
Area of a circle: pi times radius squared
Yes if 1.5 is the diameter of the circle but no if 1.5 is the radius of the circle.
A circle with a radius of 3 inches has a circumference of 18.8 inches
The radius of a circle is half the diameter, so the radius of a 6 inch diameter circle is 3 in.
Radius = 12.414 inches (to 3 dp)
A circle with a 12 inch diameter has a 6 inch radius.
18.84 square inches
Circumference of a circle = 2*pi*radius or pi*diameter
The radius of a circle with a 14.5 inch circumference is 2.15 inches
A four-inch radius circle has an area of about 50.27 square inches.
The 'closest' value of the area of a 3-inch circle is: 7.06858347 square inches.
12 inch
1 inch
Radius is 3 times as large so area is 3*3 = 9 times as large.