Question

Q5 From a circular sheet of radius 4 cm, a circle of radius 3 cm is cut out. Calculate the area of the remaining sheet after the smaller circle is removed​

Answer 1

Step-by-step explanation:

R1 = 4 cm

R2 = 3 cm

ATQ

πR1^2 - πR2^2

22/7 x 4 x 4 - 22/7 x 3 x 3

taking common

$\frac{22}{7}$(4^2 - 3^2)

$\frac{22}{7}$(16 - 9)

$\frac{22}{7}$ x 7

Area of left sheet

22 cm^2