Question

8 squares of side 1 CM are cut out of the square D now it looks like shape E what the length of the boundary of shape E

Answer 1

Answer:

C because each each side is 1 cm due to the explanation that 8 squares of 1 cm.

Step-by-step explanation:

The total space within the boundary of any closed figure is called it's Area. So, the space within the boundary of square is also called its area.

Answer 2

The length of the boundary of shape E is 36 cm.

Given:

side of the square D = 8 cm

side of the 8 squares cut out of square D = 1 cm

To Find:

the length of the boundary of shape E

Solution:

now, as we can see 2 squares are cut out of each side of square D

the 4 corner squares will have a perimeter of 4 cm each

thus, the total perimeter of the corner squares = 16 cm

now, for the remaining part, we can just calculate the number of straight lines in the shape E.

As each straight line is 1 cm, the perimeter of the remaining part will be = 20 cm

thus, total perimeter = 20 + 16 = 36 cm

Hence, the length of the boundary of shape E is 36 cm.

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