From a circular card sheet of radius 14 cm

Asked by admin @ 16/08/2021 in Math viewed by 291 People

From a circular card sheet of radius 14 cm,2 circles of radius 3.5cm and a rectangle of length 3cm and a breadth is 1 cm is removed.find the area of remaining sheet .(pi=22÷7)

Answered by admin @ 16/08/2021

R=14 cm
total area= πr²
=22/7*196=616 cm²
r2= 3.5 cm
area of the small circles= 2*πr²=2*12.25*22/7=77 cm²
length of rectangle=3
breadth=1
area =lb=3 cm²

area of the small circles+area of rectangle=77+3=80 cm²

remaining area=616-80=536 cm²

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