Question

if one side of a square is increased by 5 metre in the underside of reduced by 5 a rectangle is formed whose perimeter is 30 metre find the side of the original square​

Answer 1

Answer:

perimeter is 30 metre find the side of the original square

Step-by-step explanation:

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Answer 2

Answer:

7.5 m

Step-by-step explanation:

Given: perimeter of rectangle is 30m

To find: side of square

Solution; let the side of square=x m

when we increased and reduced side will become (x+5) and (x-5) of rectangle

Now, perimeter of rectangle=2(l+b)

2[x+5+x-5]=30

2×2x=30

x=30/4 =7.5m