The perimeter of a triangle with two sides of length 15 cm and 12.5 cm is 40 cm. Its third side is
12 cm2
45 cm2
75 cm2
35 cm2
Two sides of a triangle are 15 cm and 20 cm. The perimeter of the triangle is 50 cm. What is the third side?
Perimeter of an isosceles triangle is 40 cm. The base is two third of the sum of sides. Find the length of each side.