The ASVAB Tutor Presents Answer to Mathematics Knowledge Question About Area and Circumference of a Circle

 

 

 

 

 

 

 

 

Mathematics Knowledge

Yesterday I presented a question about the area and circumference of a circle.

If the area of a circle is 9p, what is the circumference?

In order to solve this problem, it is necessary to know how to find the area of a circle and the circumference of a circle.

The formula for the area of a circle is A = pr².

If the area of a circle is 9p, then r² is 9 and the radius is 3.

The formula for the circumference of a circle is C = pd

If the radius is 3, the diameter is 6

Circumference = pd = 6p.

The circumference is 6p.

Did you know how to answer this question correctly?