Construct an equilateral triangle with sides 4 cm and then construct a similar triangle of the given triangle whose sides are 3/4 times of the given triangle.

Find the greatest angle of the triangle whose sides are 3, 5 and 7 cms.

Prove that the area of an equilateral triangle with sides equal to the sides of a square is half the area of the equilateral triangle with sides equal to țhe length of the diagonals of the square.

ABC is an equilateral triangle of sides 2a.Find each of its altitudes.

Find the greatest angle of the triangle whose sides are of length 5, 12 and 13 cms

Find the greatest angle in the triangle whose sides are x^2+x+1 ,2x+1, x^2-1

Construct a rectangle with adjacent sides of lengths 5 cm and 4 cm.

Length of an altitude of an equilateral triangle of side '2a' cm is

Construct a triangle similar to a given triangle ABC with its sides equal to 5/4 of the corresponding sides of a a triangle ABC.

The medians of a triangle are 6 cm, 7.5 cm and 9 cm. Construct the triangle.

If one side of an equilateral triangle measures 5 cm,then find the measure of its altitude.