Question

Please help, It's a test

Answer 1

Answer:

$\sf \green{ \therefore \: Side \: of \: the \: original \: square = 7 \: cm}$

Step-by-step explanation:

Let the original length of each side of the square be 'x'

$\sf \therefore \: 4(x + 5) = 48$

4x + 20 = 48

4x = 48 - 20

4x = 28

$\sf x = \frac{28}{4} = 7 \: cm$

Check:-

Perimeter of the new square

= 4 ( x + 5 cm )

= 4 ( 7 cm + 5 cm )

= 4 ( 12 cm ) = 48 cm

48 cm = 48 cm