How to solve question 20??

A piece of wire is in the shape of an equilateral triangle whose side measures 4.4 cm each this wire is rebent to form a circular ring what is the area of the ring (π=22/7)

A trapezoid has a base of 9 inches and 7 inches and a height of of 5 inches what is the area

(Area and perimeter) a verandah of width 2.25m is constructed all along outside a room which is 5.5m long and 4m wide. Find :
(a) the area of verandah
(b) the cost of cementing the floor of the verandah at the rate of $200 per m square.

The area of a rectangle us 60cm and its length is 12cm what is the breath and perimeter?

The length and breadth of a rectangular field are 64m and 16m respectively if is exchanged field of the same area find the side of the square field

The sides of a rectangular park are in the ratio 4:3. If its area is 1728 meters squared, find the cost of fencing it at ₹30 per metre.

2questions

A wire in the shape of a square of side 11m is rebent intothe shape of a circle.Find the area of the circle?