158,479 views
21 votes
21 votes
Please help me...

Justin’s tricycle wheel travels about 57 inches in 1 full rotation. What is the diameter of the wheel, to the nearest inch?

User Dannybucks
by
3.0k points

2 Answers

11 votes
11 votes
18 inch is the answer i think
User Francesco Florio
by
2.7k points
15 votes
15 votes

Answer:

18 inch

Explanation:

In a full rotation, a wheel covers its full perimeter(circumference). Let the diameter be d.

=> circumference = 57 inch

=> πd = 57 inch

=> (22/7) d = 57 inch.

=> d = (57 * 7)/22 inch

=> d ≈ 18.13 inch

=> d = 18 inch (nearest inch)

User Ahmad Sultan
by
3.6k points