Posted by **PLEASE HELP** on Monday, September 26, 2011 at 7:51pm.

You are given two different circles. The diameter of the first circle is the radius of the second circle. What is the ratio of the area of the larger circle to the area of the smaller circle. Your answer should be in the form of a simplified fraction. I have no idea where to start. Please help.

Thank you.

- MATH HELP PLEASE -
**MathMate**, Monday, September 26, 2011 at 9:55pm
When comparing similar figures (eg. circles with circles, squares with squares, etc.)

Ratio of area

= (ratio of linear dimension)²

In this case,

ratio of diameters=2/1=2

Can you find the ratio of areas?

## Answer this Question

## Related Questions

- summer math hw - one circle has a diameter of 10 inches. a second circle has a ...
- Please help with circle tangents geometry - Two circles of different sizes are ...
- math - A circle has an area of 25 pi cm^2.If a circle is drawn within that ...
- math - two circles intersect at point T.if the small circle has a raduis of 4 ...
- Math - Jason drew two circles. the diameter of the larger circle is twice the ...
- Pre-Calc (Circles) - Describe the conditions necessary, where circle A has a ...
- GEOMETRY(CIRCLE) - Three circles with different radii have their centers on a ...
- GEOMETRY CIRCLES PLEASE - HELP ME PLEASE. 1.An isosceles triangle with each leg...
- GEOMETRY CIRCLES PLEASE - 1.An isosceles triangle with each leg measuring 13 cm ...
- math gre question - in an infinite series of circles the radius of the second ...