Posted by **Micha** on Monday, October 1, 2007 at 12:34pm.

A homeowner wishes to insulate her attic with fiberglass insulation to

conserve energy. The insulation comes in 40-cm wide rolls that are cut to fit between

the rafters in the attic. If the roof is 6 m from peak to eave and the attic space

is 2 m high at the peak, how long does each of the pieces of insulation need to be?

Round to the nearest tenth.

- Algebra -
**Micha**, Monday, October 1, 2007 at 12:34pm
I am sorry, How would I set this problem up?

- Algebra -
**Ms. Sue**, Monday, October 1, 2007 at 1:15pm
First, you have a right-angle triangle; its height is 2 m and its hypotenuse is 6 m. To find the base, use the Pythagorean theorem: a^2 + b^2 = c^2. This gives you half the length of a piece of insulation. Double that number to find the total length of each piece.

If you post your answer, we'll be glad to check it.

- Algebra -
**Ms. Sue**, Monday, October 1, 2007 at 2:44pm
Right! You've got it! :-)

- Algebra -
**Micha**, Tuesday, October 2, 2007 at 12:33am
Thanks! :)

## Answer this Question

## Related Questions

- algebra - A homeowner wishes to insulate her attic with fiberglass insulation to...
- algebra - A homeowner wishes to insulate her attic with fiberglass insulation to...
- algebra - A homeowner wishes to insulate her attic with fiberglass insulation to...
- home inspection - 11. Structural failure in a roof may be due to A. the presence...
- math - An architect designs a house that is 12m wide. The rafters holding up the...
- Statistics - A quality control engineer is interested in the mean length of ...
- math correction - Problem#1 Find the length x in each triangle. Express your ...
- College physics - In this problem you will estimate the heat lost by a typical ...
- College Physics - In this problem you will estimate the heat lost by a typical ...
- physics - The R-factor for housing insulation gives the thermal resistance in ...

More Related Questions