ABC is an equilateral triangle. Taking BC as the base, construct a right angled triangle equal in area to equilateral triangle ABC.

Construct an equilateral triangle of sides 6 cm each.

Construct an equilateral triangle, given its side and justify the construction.

AD is an altitude of an equilateral triangle ABC. On AD as base, another equilateral triangle ADE is constructed. Prove that Area ( triangle ADE ): Area ( triangle ABC )=3:4.

What is the area of equilateral triangle if the base BC = 6 ?

Construct an equilateral triangle whose altitude is 4 cm.

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

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

Construct an equilateral triangle whose side is 5 cm.

ABC is an equilateral triangle. Charges +q are placed at each corner. The electric field intensity at the centroid of triangle will be

AD, BE and CF , the altitudes of triangle ABC are equal. Prove that ABC is an equilateral triangle.