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Question

A square of side 2 cm is cut out from a corner of a square of side 4 cm. What is the perimeter of the resulting figure?


A
20 cm
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B
18 cm
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C
16 cm
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D
12 cm
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Solution

The correct option is C 16 cm

The perimeter of the resulting figure is 

4 cm+4 cm+2 cm+2 cm+2 cm+2 cm=16 cm.

Note that this is same as the perimeter of the larger square.

(16 cm=4×a=4×(4 cm))

Mathematics

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