If each side of an equilateral triangle is 4 cm, the measure of heights is

The lengths of the sides containing the right angle are 12 cm and 5 cm. Let us write by calculating the length of perpendicular drawn from vertex of right angle on hypotenuse.

The largested square is cut-out from a right-angled triangular region with length of 3 cm, 4 cm and 5 cm respectively in such a way that the one vertex of square lies on hypotenuse of triangle. Let us write by calculating the length of side of square.

An isosceles right-angled triangle of which the length of each side of equal two sides is a unit. The perimeter of triangle is

If the area, perimeter and height of an equilateral triangle are a, s and h, then value of is