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Question
From the corner of the following
square, a small square of
side 1 cm is cut off. What will be the length(in cm) of the boundary of B?
From the corner of the following
square, a small square of
side 1 cm is cut off. What will be the length(in cm) of the boundary of B?
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Solution
The correct option is A 12
Length of each side of square A = 3 cm
Number of sides of square A = 4
Length of the boundary of square A = 4 × 3 cm = 12 cm
Now, a small square of side 1 cm is cut off from one corner of square A.
Therefore, the length of the boundary of B
= 2 cm + 1 cm + 1 cm + 2 cm + 3 cm + 3 cm
= 12 cm
Length of each side of square A = 3 cm
Number of sides of square A = 4
Length of the boundary of square A = 4 × 3 cm = 12 cm
Now, a small square of side 1 cm is cut off from one corner of square A.
Therefore, the length of the boundary of B
= 2 cm + 1 cm + 1 cm + 2 cm + 3 cm + 3 cm
= 12 cm
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