Question

To find out how far a car with a tire of a radius of 20 cm will travel in 120 turns, calculate the total distance covered, which is equivalent to the circumference of the tire for each turn.

Given:
Radius of the car tire (r) = 20 cm
Number of turns (n) = 120

Answer 1

To find the total distance covered by a car tire with a radius of 20 cm in 120 turns, multiply the circumference of the tire by the number of turns.

Step-by-step explanation:

To find the total distance covered by a car tire with a radius of 20 cm in 120 turns, we need to calculate the circumference of the tire and then multiply it by the number of turns. The circumference of a circle is given by the formula C = 2πr, where r is the radius of the circle. In this case, the radius is 20 cm, so the circumference of the tire is 2π(20 cm) = 40π cm. To find the total distance covered, we multiply the circumference by the number of turns: 40π cm × 120 = 4800π cm. This is the total distance covered by the car tire.