Question

The diameter of a bike wheel is 2 ft. How far will the bike go in one rotation of the wheel?

Answer 1

the circumference of a circle = 6.26 feet

Explanation:

to evaluate how far the bike will go in one rotation simply means to find the circumference of the wheel

given that

diameter = 2feet

π = 3.14

recall, that

the formulae for calculating the circumference of a circle = 2πr

note diameter = 2 x radius

radius = diameter / 2

radius = 2/2

radius = 1feet

the circumference of a circle = 2πr

the circumference of a circle = 2 x 3.14 x 1

the circumference of a circle = 6.26 feet

Answer 2

6.3 feet

Explanation:

diameter is 2ft.

so the "r" radius is half of diameter. i.e 1 ft.

therefore, circumference of wheel =2 x pi x r

2 x 3.14 x 1 = 6.3