Geometry ratios?

[narik26]

I have no idea how to do any of these problems D; Any chance you could help?

A circle has a radius of 24 inches.

• If the area is doubled, how does the radius change?

• How does the radius change if the area is tripled?

• What is the change in the radius if the area is increased by a factor of x?

 

[Denis]

I have no idea how to do any of these problems D; Any chance you could help?

WHY were they given to you to do then?

 

[tkhunny]

You may need a formula for the area of a circle. It would be most helpful if it had a relationship with the radius fo the circle. Have you such a formula?