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.
Around 19.634375 cm
Area of circle = 78.54 sq cm => Radius of circle = 5 cm => Diameter of circle = 10 cm => Side of square = 10cm => Area of square = 100cm2
10 cm; the diameter of a circle is twice its radius.
Area = pi x r2 = 3.142 x 5 x 5 = 78.55 sq cm
10 cm
cicumference = pi*5 cm area = pi*2.52 square cm
radius 5 cm diameter 10 cm
Using 3.14 as Pi the area of circle is: 78.5
Assuming a diameter of 5 inches.The area of this circle is: 19.63
10 cm (diameter is double the radius)
The radius of a circle is half the length of its diameter. Therefore, if the diameter of the circle is 10 cm, the radius would be half of that, which is 5 cm. The formula to find the radius of a circle is r = d/2, where r is the radius and d is the diameter.
Area = pi*2.52 = 19.63495408 or about 20 square cm Circumference = pi*5 = 15.70796327 or about 16 cm