## Elementary Technical Mathematics

The perimeter of the triangle is $2237\frac{1}{4}$ feet.
The perimeter of a triangle is equal to the sum of the lengths of its sides. Add the lengths of the three sides to obtain: Perimeter $=712\frac{3}{4} + 563 + 961\frac{1}{2} \\=(712+563+961) + (\frac{3}{4}+\frac{1}{2}) \\=2236 + (\frac{3}{4}+\frac{2}{4}) \\=2236+\frac{5}{4} \\=2236+1\frac{1}{4} \\=2237\frac{1}{4}$ Thus, the perimeter of the triangle is $2237\frac{1}{4}$ feet.