## Elementary Geometry for College Students (6th Edition)

Lets take length of second side be x in Length of third side be 12 more than the second side= x+12 in Length of first side be twice of second side = 2x Perimeter of triangle = length of first side + second side+ third side 76 = 2x + x+ x+12 76 = 4x + 12 4x = 76 - 12 = 64 x = $\frac{64}{4}$ = 16 in Therefore Length of first side = 2x = 2*16 = 32in Length of second side = 16in length of third side = x+12 = 16 + 12 = 28in