9. The following figure shows a square card- board ABCD of side 28 cm. Four identical circles of largest possible size are cut from this card as shown below. D C А B. D______________C
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| l
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A _____________B
smile is a circle 4 circle
Answers
Answered by
2
According to the figure,
Radius of the each circle=7cm
Area of one circle=π(7)
2
Therefore,
Area of 4 circle=4π(7)
2
=4×
7
22
×7×7
=616
Area of square=28
2
=784
Therefore,
Remaining area=(28)
2
−4π(7)
2
=784−616
=168cm
2
Answered by
1
Step-by-step explanation:
According to the figure,
Radius of the each circle=7cm
Area of one circle=π(7)2
Therefore,
Area of 4 circle=4π(7) 2
=4×722×7×7=616
Area of square=282=784
Therefore,
Remaining area=(28)2−4π(7)2
=784−616
=168cm2
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