Question

how many times a wheel of radius 21 cm must rotate to go. 1320 cm​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

10 times the wheel should rotate to go 1320 cm.

Step-by-step explanation:

Radius of Circle = 21 cm

Circumference of the Circle = 2 × π × radius

                                              = 2 × 22/7 × 21

                                              = 44/7 × 21

                                              = 924/7

                                              = 132 cm

1320/132 = 10

∴ The wheel should rotate 10 times to go 1320 cm.

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