The Answer is 20cm because you divide the diameter by 2 and then it should be your answer
EX:
20/2=10, 102= Radius
This cannot be properly answered because a 20 cm radius equates to a 40 cm diameter. Also, a 50 cm diameter means a 25 cm radius.
Radius: square root of (12320/20*pi) = 14.00281721 cm Diameter: 28.00563442 cm
The diameter of a circle is twice its radius. Thus the radius of a circle is half its diameter. → a circle with a diameter of 15 cm has a radius of 15/2 cm = 7.5 cm
Diameter = Radius * 2 In this case, radius = 8 cm so diameter = 16 cm
If the diameter is 12 cm the radius is 6 cm.
That depends what you mean with "a 20 cm. circle". If 20 cm. is the radius, you already have the answer. If 20 cm. is the diameter, the radius is half the diameter. (10cm)
This cannot be properly answered because a 20 cm radius equates to a 40 cm diameter. Also, a 50 cm diameter means a 25 cm radius.
20 cm
20 cm
20 cm
Radius: square root of (12320/20*pi) = 14.00281721 cm Diameter: 28.00563442 cm
The formula to calculate the area of a circle is A = πr^2, where r is the radius of the circle. Since the diameter is 20 cm, the radius would be half of that, which is 10 cm. Plugging in the radius into the formula, we get A = π(10)^2 = 100π cm^2. Therefore, the area of the circle with a diameter of 20 cm is 100π square centimeters.
The diameter of a circle is twice its radius. Thus the radius of a circle is half its diameter. → a circle with a diameter of 15 cm has a radius of 15/2 cm = 7.5 cm
20 (cm) 8 inches
10 cm
radius 5 cm diameter 10 cm
Diameter = Radius * 2 In this case, radius = 8 cm so diameter = 16 cm