Find the area of an equilateral triangle of side 5cm, correct to three significant figures.

Sum of angles of a traingle is

The altitude to the side of 5 cm of a triangle having area of 7.5 sq.cm

Find the area of the triangle ABC shown in figure?

The one side of a triangle is 7.5 cm and altitude to it from the opposite vertex is 4 cm.Then its area is?

If all three sides of a triangle are different, then it is called 

Find the area of an equilateral triangle of side 4cm, correct to three significant figures

Area of a rectangle =

Base and height of a right angled triangle are 4 cm and 2 cm respectively. Then its area is

A triangle with one  right angle is called ___________ triangle.