An isosceles triangle has two sides of length $$11 cm.If the third side has a length of $$x cm, write an expression for the perimeter of the triangle.

An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of the triangle

An altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles. As a result, the altitude cuts the base into two equal segments. The length of the altitude is 11 inches, and the length of the base is 6 inches. Find the triangle’s perimeter. Round to the nearest tenth of an inch.

The sides of a triangle are 8 cm, 11 cm and 13 cm. What is its area?

A triangle has side lengths of left parenthesis, 9, v, minus, 7, w, right parenthesis(9v−7w) centimeters, left parenthesis, 7, v, plus, 10, x, right parenthesis(7v+10x) centimeters, and left parenthesis, 8, x, plus, 5, w, right parenthesis(8x+5w) centimeters. Which expression represents the perimeter, in centimeters, of the triangle?

Find the area of a triangle two side of the triangle are 18 cm, and 12 cm. and the perimeter is 40 cm.