A gutter at the edge of a roof drops 2 inches for every 30 feet of length. The measure of the angle to the nearest tenth of a degree that the gutter makes with the roof is ___ degrees

Question

anonymous · Answer

First I convered 30 ft into 360 inches then I drew what the picture would look like|dw:1399595958116:dw|
Then I used the inverse of tangent to solve for theta: tan^1(2/360) and my calculator came up with an answer of 89.68 which I put on the test, and then got marked down for.
WHERE AM I GOING WRONG?!?