The sum of Is its radius?
A garden roller has circumference 3 m. How many revolutions does it make in moving a dio
of 21 m?
A bicycle wheel with the diameter 70 cm is making 25 revolutions while travelli​

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

ƒ = 0.03b

hope this ( :

step-by-step explanation:

4932,9180,7625 are divisible by 9