The product of the arithmetic mean of the lengths of the side of a triangle ABC and harmonic mean of the lengths of the altitudes of the triangle is equal to (Delta is area of triangle ABC).

The product of the arithmetic mean of the lengths of the sides of a triangle and harmonic mean of the lengths of the altitudes of the triangle is equal to: a. 1 b. 2 c. 3 d. 4

If area of a triangle is 2 sq.units,then find the value of the product of the arithmetic mean of the lengths of the sides of a triangle and harmonic mean of the lengths of the altitudes of the triangle.

The altitudes of a triangle are in arithmetic progression, then the sides of a triangle are in

Find the length of a altitude in on equilateral triangle of side 'a' cm

Each side of triangle ABC is divided into three equal parts.Find the ratio of the are of hexagon PQRSTU to the area of the triangle ABC.

The perimeter of a triangle ABC is saix xx the arithmetic mean of the sines of its angles. If the side a is 1 then find angle A.