Question

Find the area and circumference of a circle whose radius is 21 cm

Answer 1

Answer:

according to question :-

radius = 21 cm

circumference = 2πr = 2* 22/7 * 21 = 2*22*3 = 132cm

area of circle = πr^2 = 22/7 * 21* 21 = 22*3*21 = 1386 cm ^2

radius = 132cm

area = 1386cm^2

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Answer 2

Step-by-step explanation:

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