A circular piece of radius 2 cm is cut from a rectangle sheet of lengt

1.	A circular piece of radius 2 cm is cut from a rectangle sheet of length 5 cm and breadth 3 cm. Find the area left in the sheet.
Answer» Radius of the portion removed r = 2 cm Area of the circular sheet = πr² sq.units = \(\frac{22}{7}\) x 2 x 2 cm² = \(\frac{88}{7}\) cm² = 12.57 cm² Length of the rectangular sheet L = 5 cm Breadth of the rectangular sheet B = 3 cm Area of the rectangle = L x B sq. units = 5 x 3 cm² = 15 cm² Area of the sheet left over = Area of the rectangle – Area of the circle = 15 cm² – 12.57 cm² = 2.43 cm²

A circular piece of radius 2 cm is cut from a rectangle sheet of length 5 cm and breadth 3 cm. Find the area left in the sheet.

Answer»

Radius of the portion removed r = 2 cm

Area of the circular sheet = πr² sq.units

= \(\frac{22}{7}\) x 2 x 2 cm²

= \(\frac{88}{7}\) cm²

= 12.57 cm²

Length of the rectangular sheet L = 5 cm

Breadth of the rectangular sheet B = 3 cm

Area of the rectangle = L x B sq. units

= 5 x 3 cm²

= 15 cm²

Area of the sheet left over = Area of the rectangle – Area of the circle

= 15 cm² – 12.57 cm²

= 2.43 cm²