In an equliateral triangle of side `2sqrt3` cm. The find circum-radius.

Draw an equilateral triangle whose sides are 5.2 cm. each

In the given figure, ABC is an equilateral triangle with side 14 cm and a circle of radius 7 cm is drawn with vertex A as centre. Find the area of the shaded region. (Use sqrt(3) = 1.73 ) [Hint : Required area = Area of triangle + Area of circle -2 xx Area of sector]

ABC is an equilateral triangle of side 2a. Find each of its altitude.

In an equilateral triangle with side a, prove that, the altitude is of length (sqrt(3))/(2)a .

DeltaABC" and "DeltaDEF are two equilateral triangles of sides 4 cm and 2 cm respectively. Find the ratio of ar(ABC) and ar(DEF).

In an equilateral triangle with side a, prove that, the area of the triangle (sqrt(3))/(4)a^(2) .

The sides of an equilateral triangle are increasing at the rate of 2cm/sec. The rate at which the area increases, when side is 10 cm is ………..

Find the area of the shaded region in the given figure, where a circular arc of radius 6 cm has been drawn with vertex O of an equilateral triangle OAB of side 12 cm as centre.