The length of the base of an isosceles triangle is 4 inches less than the length of one of the two equal sides of the triangles. if the perimeter is 32, find the three sides of the triangle. if x represents one of the equal sides of the triangle, then which equation can be used to solve the problem? 1. 3x - 4 = 32 2. 3x + 4 = 32 3. 2x - 4 = 32