Question

213. What is the circumference of the circle
with radius 21 cm ?
O
132 cm
O
121 cm
O
44 cm
None of these​

Answer 1

Answer:

Your answer is:

Step-by-step explanation:

Circumference = 2 x pi x r

So first one 2 x 22/7 x 21 = 2 x 22 x 3 = 132 cm

2. 2 x 22/7 x 132 = 3.14 x 2 x 132 = 828. 96 cm

3. 2 x 3.14 x 121 = 759.88 cm

4. 2 x 3.14 x 44 = 276.32

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Answer 2

Answer:

C= 2πr

C=2×22/7×21

C=132