Question

if Diameter of a circle is 21 cm bind it radius​

Answer 1

Step-by-step explanation:

2× radius = diameter

so diameter ÷ 2 = radius

21÷2= 10.5

so our answer is 10.5

Answer 2

Answer:

42

Step-by-step explanation:

Diameter of circle = 2 × radius

therefore = 2×21=42