Question

A road bike has a wheel diameter of 622 mm. What is the circumference of the wheel? Use 3.14 for mc015-1.jpg

Answer 1

Since the formula for circumference is pi*diameter, you multiply 3.14 by 622 mm to get 1953.08 mm as your circumference.

Answer 2

Answer: 1953.08 mm

Step-by-step explanation:

We know that circumference of a circle is given by ;-

$\text{Circumference}=2\pi r$, where r is the radius of the circle.

Given: the diameter of the wheel = 622 mm

Then, the radius of the wheel =$\dfrac{622}{2}=311\ mm$

Now, the circumference of the wheel is given by ;-

$\text{Circumference}=2\pi (311)\\\\\Rightarrow\ \text{Circumference}=2(3.14)(311)\\\\\Rightarrow\ \text{Circumference}=1953.08\ mm$

Hence, the circumference of the wheel = 1953.08 mm.