The radius of a circular wheel is 14.7 cm. How many revolutions will it make to cover a distance
of 2,310 m
Answers
Answered by
3
Answer:
.circumference of the wheel.
The formula for the circumference C of a circle is: C = 2πr, where r is the radius of the circle (wheel) and π (pronounced "pi") is the famous irrational number. Let π = 3.14.
C = 2πr
= 2(3.14)(7 cm.) (Note: We were given that the radius r of wheel = 7 cm.)
= (6.28)(7 cm.)
C = 43.96 cm.
Answered by
3
Answer:
ans :25
Step-by-step explanation:
r=14.7cm
circumference=2×3.14×14.7
circumference=92.4cm
1 revolution=circumference
no. of revolutions=2310/1revolution
=2310÷92.4
=25
hence, 25 revolutions will take
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