Perimeter of a triangle

Area and Perimeter of triangle

Prove that the perimeter of any triangle is greater than the sum of three altitudes.

If triangle ABC is similar to triangle PQR , Perimeter of triangle ABC = 30 cm , Perimeter of triangle = 45 cm , PR = 9 cm then find AC.

Find the perimeter of each triangle.

Find the perimeter of the triangle.

Find the perimeter of each triangle.

Calculate the perimeter of the triangle shown below. .

The sum of altitudes of a triangle is than the perimeter of the triangle._______