Chat with our AI personalities
10 cm; the diameter of a circle is twice its radius.
radius 5 cm diameter 10 cm
10 cm (diameter is double the radius)
Pi times the diameter of a circle gives its circumference. Since the radius is 5 cm, the diameter is 10 cm, and pi x 10 cm is the answer, or 31.4159 cm.
The area of a circle with a 5-inch diameter is: 19.63 square inches.