Question

The given shape is
made up of four
rectangular bricks. If
each rectangel has a
perimeter of 80 cm,
find the perimeter of
the entire box (in
cm)​

Answer 1

Answer:

No.of briks=4

Perimeter of each brick=80cm

=80cm×4=320cm.

Step-by-step explanation:

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Answer 2

Answer:

The perimeter of the entire box is 160cm.

Step-by-step explanation:

Given each rectangular brick has a perimeter of 80 cm.

Perimeter of rectangle is given by the twice the sum of its length and breadth.

i.e., $\mbox{Perimeter} = 2(\mbox{length} + \mbox{breadth})$

$\implies 80=2(l+ b)$

$\implies l+ b=\dfrac{80}{2} =40cm$

Given that a shape is made up of four rectangular bricks.

Assuming that they are arranged in a way as shown in the figure.

If we see the figure, each side has a length and the breadth of the rectangular brick.

And all the sides are equal measures, so it is a square.

Each side of the square is equal to the sum of the length and breadth of the rectangular brick.

i.e., $\mbox{side} = \mbox{length} + \mbox{breadth}$

And the perimeter of square is given by the sum of all its sides, which is written as

$\mbox{Perimeter} = 4\times\mbox{side}$

               $= 4(\mbox{length} + \mbox{breadth})$

               $= 4\times 40=160cm$

Therefore, the perimeter of the entire box is 160cm.

For more info:

https://brainly.in/textbook-solutions/q-rectangle-doubled-ratio-i-perimeters-original-rectangle-1

https://brainly.in/question/49901570