Three coins of unit radius are placed in an equilateral triangle as shown in the following figure. The area of the equilateral triangle is

Area of an equilateral triangle

The side of an equilateral triangle is shown by 1.Express the perimeter of the equilateral triangle using 1.

Three points charges are placed at the corners of an equilateral triangle of side L as shown in the figure:

If arcs of radius r cm are drawn with the vertices of an equilateral triangle ABC as shown in the figure, then the area of the shaded region is

Consider an equilateral triangle of side sqrt(6) as shown in figure.Find the area of the shaded region