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

Show that the following points form an equilateral triangle A(a, 0), B(-a, 0), C(0, a sqrt(3))

Prove that the area of the equilateral triangle described on the side of a square is half the area of the equilateral triangles described on its diagonal.

Three identical charges, each having a value 1.0 xx10^(-8)C, are placed at the corners of an equilateral triangle of side 20 cm find the electric field and potential at the centre of the triangle.

Three particles each of mass m are placed at the three corners of an equilateral triangle of side a. The work done on the system to increase the sides of the triangle to 2a is:

Show that the angle bisectors of a triangle are concurrent.

Find the area of an equilateral triangle whose perimeter is 180 cm.

Draw the circumcircle for an equilateral triangle of side 6 cm.