Question

5. From a circular sheet of radius 5cm, a circle of radius 4cm is removed.
Find the area of the remaining sheet. (Take it = 3.14​

Answer 1

Answer:

Area of sheet (R) = 5 cm

Radius of circle (r) = 4 cm

Area of remaining part = πR2 – πr2

= π(R2 – r2)

= 3.14(52 – 42)

= 3.14(25 – 16)

= 3.14 x 9

= 28.26 sq cm

Answer 2

Answer:

${r}^{2} \pi = {5}^{2} \times 3.14 = 78.5$

${r}^{2} \pi = {4}^{2} \times 3.14 = 50.24$

remaining sheet area

$= 78.50 - 50.24 = 28.26$

Step-by-step explanation:

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