Question

The perimeter of a triangle is 20cm and sum of its two sides is 12cm what is the remaining side?

Answer 1

Answer:

Remember the formula for finding the perimeter of a triangle. For a triangle with sides a, b and c, the perimeter P is defined as: P = a + b + c. What this formula means in simpler terms is that to find the perimeter of a triangle, you just add together the lengths of each of its 3 sides.