SOLUTION: A woman is planning a patio. the triangular-shaped patio has sides 25 ft, 23 ft, and 30 ft. I need to find the number of square feet of surface area to be covered with concrete.

Question 864804: A woman is planning a patio. the triangular-shaped patio has sides 25 ft, 23 ft, and 30 ft. I need to find the number of square feet of surface area to be covered with concrete.
Found 2 solutions by josgarithmetic, richwmiller:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
This is not a right triangle because .

Let q = measure of angle for vertex of the 23 ft. side with the 30 ft. side.
The 25 ft. side is opposite of angle with measure q.

Law of Cosines

----something seems not right about this---
degrees.

The height of this triangle, using base of 30 feet, is .
-
Area, , which you need to simplify, and you will want to round to the nearest square foot, or maybe to the nearest tenth of a square foot.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
12 sqrt(546)=280.4 sq ft
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