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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.
Solution
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
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