From a circular card sheet of radius 14 cm, two circles of radius 3.5 cm and
a rectangle of length 3 cm and breadth 1cm are removed. (as shown in the
adjoining figure). Find the area of the remaining sheet. (Take π = 22/7)
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Answer:
Radius of the circular sheet = 14 cm
∴ Area = πr square = 227 × 14 × 14 cm square
= 616 cm square
Area of 2 small circles = 2 × πr square
= 2 × 227 × 3.5 × 3.5 cm square
= 77.0 cm square
Area of the rectangle = l × b
= 3 × 1 cm square = 3 cm square
Area of the remaining sheet after removing the 2 circles and 1 rectangle
= 616 cm square – (77 + 3) cm square
= 616 cm square – 80 cm square = 536 cm
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