The diagram below shows a rectangular sheet of cardboard with 2 circular pieces cut from it. The radius of each of the circular pieces

Question

The diagram below shows a rectangular sheet of cardboard with 2 circular
pieces cut from it. The radius of each of the circular pieces is 3cm. Find the
area of remaining card.

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Trung Dũng 2 weeks 2021-09-03T17:54:08+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-09-03T17:55:45+00:00

    Answer:

    Two sector of 90 degree cut out(90*2=180 degree) means semicircle

    perimeter of circle= 2πr

    = 2*22/7*3=18.85 cm

    perimeter of semicircle=18.85/2=9.42 cm approx

    0
    2021-09-03T17:55:56+00:00

    2 =

    3cm =

    Explanation – solve the function operation

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