Posted by **olivia** on Thursday, December 11, 2008 at 9:53pm.

find the area of this ring to the nearest square unit. Show your work.

The image shows a ring, the inside raius is 2.0m, and the outside radius is 3.2m. The area of the ring is...

plz help!! thx.

- math -
**Ms. Sue**, Thursday, December 11, 2008 at 10:08pm
First, let's get the outside area.

A = pi * r^2

A = 3.14 * 10.24

A = 32.1536

Now, the inside area:

A = 3.14 * 2^2

A = 12.56

Subtract:

32.1536 - 12.56 = ?

- math -
**NachoMath**, Thursday, April 21, 2016 at 9:46pm
Combine like terms, in this case simplify to multiply:

3.2^2pi its 10.24pi

2^2pi its 4pi

then subtract like terms

(10.24 - 4) pi = 6.24pi

~19.59SqU (Square Units)

## Answer This Question

## Related Questions

- Math Help Please - The concentric circles, or growth rings, represent the cross-...
- math - A two dimensional picture of a circular onion ring is shown at the right...
- math - A two dimensional picture of a circular onion ring is shown at the right...
- physics - a metallic ring of radius 'r' and cross sectional area is fitted into ...
- Math - The area of a circus ring is about 1,385 square feet. What is the ...
- diffirential calculus - considering the area of a circular ring as a increment ...
- Geometery - How do I solve this? On my assignment it says find the area inside ...
- 7th grade math question ms. sue - the area of a square boxing ring is 484^2. ...
- Physics - An aluminum ring of radius 5.00 cm and resistance 2.00 10-4 Ω is ...
- Physic - An aluminum ring of radius 5.00 cm and resistance 2.00 10-4 Ω is ...

More Related Questions