Question

Find the area of the biggest circle that can be cut from a rectangular piece of 44cm by 28 cm. Also, find the area of the paper left after cutting out the circle.

Answer 1

Area of piece of paper= 44 x 28 = 1232 cm² 

The biggest circle that can be rut from rectangular piece of paper is of diameter 28 cm (ie. Radius 14 cm). 

Area of circle = π r² 

`= 22/7 xx 14 xx 14`

= 616 cm²

Area of the cirde = 616 cm² 

Area of paper left = area of paper - area of circle 

= (1232 - 616) cm² 

= 616 cm² 

Therefore, area of paper left= 616 cm²