Traffic signal board indicating School A h e a dis an equilateral triangle with side a find the area of the signal board using heron's formula if its perimeter is 180 cm what will be the area of the signal boards
show that the triangle of maximum area that can be inscribed in a circle is an equilateral triangle
Sum the series 1 + 3 – 5 + 7 + 9 – 11 + 13 + 15 – 17 …… to 3n terms.