Mathematics
A metal wire, when bent in the form of an equilateral triangle of largest area, encloses an area of . If the same wire is bent into the form of a circle of largest area, find the area of this circle.
Related Questions
The given figure shows a rectangle ABCD inscribed in a circle as shown alongside.

If AB = 28 cm and BC = 21 cm, find the area of the shaded portion of the given figure.
A square is inscribed in a circle of radius 7 cm. Find the area of the square.
The perimeter of a triangle is 450 m and its sides are in the ratio 12 : 5 : 13. Find the area of the triangle.
A triangle and a parallelogram have the same base and the same area. If the sides of the triangle are 26 cm, 28 cm and 30 cm and the parallelogram stands on the base 28 cm, find the height of the parallelogram.