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SanuByahut
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A rectangular piece is 20m long and 15m wide. From its four corners, quadrants of radii 3.5m have been cut. Find the area of the remaining part.

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In this question we have to the find area of the
remaining part given that a rectangular piece is
20m long and 15m wide. From its four corners,
quadrants of radii 3.5m have been cut.

This question is from r d sharma class 10 maths.
I found this question while doing mensuration of
class 10.
I need help in getting the solution.

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1 Answer

  1. Given,

    Length of the rectangle = 20 m

    Breadth of the rectangle = 15 m

    Radius of the quadrant = 3.5 m

    So,

    Area of the remaining part = Area of the rectangle – 4 x Area of one quadrant

    = (l x b) – 4 x (¼ x πr2)

    = (l x b) – πr2

    = (20 x 15) – (22/7)(3.5)2

    = 300 – 38.5

    = 261.5 m2

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