Question

if the radius of a circle is 21cm,find its diameter with explanation​

Answer 1

Answer:

42 cm

Step-by-step explanation:

Diameter = 2 * Radius

Radius- 21 cm

2 * 21 = Diameter

42 cm = Diameter

Answer 2

Diameter of circle = 2 x radius
= 2 x 21
= 42 cm


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