Question

the rectangle with sides 10 cm and 20 CM inside this draw 2 circle with radius 3.5 cut out the rectangle and 2 circle what is the area of the remaining piece of paper

Answer 1

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Here is your answer

Area of rectangle = 20 x 10 = 200 sq cm

Area of circle = πr^2
=
$\frac{22}{7} \times 3.5 \times 3.5 \\ = 38.5sq \: cm$
Area of remaining piece of paper = Area of rectangle - 2x Area of circle
$= 200 - 2 \times 38.5 \\ = 200 - 77 \\ = 123 \: sq \: cm$
Hope it helps you