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February 26, 2015

February 26, 2015

Posted by **Alyssa** on Monday, March 11, 2013 at 2:31am.

- Geometry -
**Lena**, Monday, March 11, 2013 at 3:37amIf you can imagine it, the figure will look like a right angle triangle. The hypotenuse will the 20 feet. The base will be 7 feet. The height is the unknown.

a^2 + b^2 = c^2

7^2 + b^2 = 20^2

Solve for 'b' and you will get the height of the wall where the ladder reaches.

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