Question

from a square sheet of side 20cm one circle of radius 7 cm is cut then find the area of the remaining paper.
pls tell​

Answer 1

Area of square sheet = (28)

2

=784cm

2

The largest circle of diameter equals to the side of square can be cut off from the square sheet.

∴ Radius of circular sheet =

2

28

=14cm

Area of remaining sheet = 784−πr

2

=784−

7

22

×14×14

= 784−616 = 168cm

2

Answer 2

Answer:

246cm²

Step-by-step explanation:

area of the Square sheet -area of the circle =area of the remaining paper

area of Square sheet = 20 ×20 =400cm²

area of the circle = πr²=$\frac{22}{7}$×7×7

=>22×7=154

then, area of the remaining paper =400-154

=246cm².

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