Question

HELP PLEASE

The diameter of a wheel is 13cm.

A. If it's driven forward so the wheel travels one full rotation, how far has the car traveled?

B. If the car has traveled a distance of 380cm, how many rotations has it traveled?

Answer 1

Answer:

A = 81.681409 (81.64 for 3.14 as pi) B = 4.65222141 (4.65458109 as 3.14 for pi) rotations

Step-by-step explanation:

To figure out how far one full rotation is (which is the circumference) you do the circumference formula: C = 2 pi r

C = 2 pi 13

C = 26pi

C = 81.681409

To figure out how many rotations C can fit into 380, divide 380 by C

380 / 81.681409 = 4.65222141