Question

if the diameter of the wheel is 42 cm and what will be its circumference

Answer 1

Answer:

15000 revolution

Step-by-step explanation:

hope its help you

Answer 2

Answer:

circumference will be 132 cm

Step-by-step explanation:

c=2πr

=2*22/7*21 cm as radius=diameter/2=42/2 cm=21 cm

=2*22*3 as 7*3=21

=2*66

=132 cm

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