Show that the angles of an equilateral triangle are `60^@` each.

Show that the angles of are equilateral triangle are 60^@ each.

Find the area of an equilateral triangle of sides8 dm each.

triangleABC is an equilateral triangle angle BEC

An equilateral triangle of side 9 cm.

Prove that the areas of the equilateral triangle described on the side of a square is equal to half the area of the equilateral triangle described on one of its diagonal.

The measure of each angle of an equilateral triangle is :

The two interior opposite angles of an exterior angles of a triangle are 60^@ and 80^@ . Find the measure of the exterior angle.

The perimeter of an equilateral triangle is 60 m. The area is :