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Question
If you cut a 1 cm square to get shape C, what will be the length of the boundary of C?
If you cut a 1 cm square to get shape C, what will be the length of the boundary of C?
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Solution
The correct option is D 14 cm
A square of 1 cm side has been cut out from the given square A. So the dimensions of the resulting shape C will be as follows.
From the image you can see:
Perimeter of shape C = 1 cm + 1 cm + 1 cm +1 cm + 1 cm + 3 cm + 3 cm + 3 cm = 14 cm
A square of 1 cm side has been cut out from the given square A. So the dimensions of the resulting shape C will be as follows.
From the image you can see:
Perimeter of shape C = 1 cm + 1 cm + 1 cm +1 cm + 1 cm + 3 cm + 3 cm + 3 cm = 14 cm
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