Posted by **carol** on Sunday, February 24, 2008 at 10:44pm.

crystal wants to build a ramp that will rise 4ft over a horizontal distance of 20ft. how long will the ramp be? round to the nearest tenth.

- math -
**Emily**, Sunday, February 24, 2008 at 11:11pm
Use the Pythagorean Theorem.

a^2 + b^2 = c^2

4^2 + 20^2 = c^2

16 + 400 = c^2

416 = c^2

c = sqrt 416

c = 20.4

If you draw a picture, you'll end up with a right triangle, and the two shorter sides are a and b, and the hypotenuse (long side) is c.

Do you get it?

## Answer this Question

## Related Questions

- Trigonometric Ratios - You are designing a ramp where the horizontal distance is...
- help please trig - According to the Americans With Disabilities Act, a ramp can ...
- how would i set this up? - According to the Americans With Disabilities Act, a ...
- 10th grade trigonometry - A wheelchair ramp is said to have an angle of 4.5° ...
- Math - A ramp long rises to a platform. The bottom of the platform is from the ...
- Math - I need this by midnight std time - A ramp must not rise more than 1 foot ...
- Math - Amanda wants to shorten the wheelchair ramp at her front door. The ...
- MATH - boating The inclined ramp of a boat launch is 8 meters longer than the ...
- algebra - an access ramp has a height of five feet and a horizontal distance of ...
- trig - A loading ramp is 35 feet long and forms an angle measuring 10° with the...

More Related Questions