Question

a jet fighter is flying routine missions on a triangular path. The length of one leg of the triangle is 4 miles more than the other leg. If the total length of the path is 10 miles, what is the length of each side?

Answer 1

So hmm check the picture below

thus, the "b" side will be 6-2a long

we know the perimeter of the triangular path is 10
thus  -> a + (a + 4) + (6 - 2a) = 10

solve for "a"