Question

A square lawn is surrounded by 5 m wide path. If the area of the path is 400 m sq find the area of the lawn
Area of square=side *side
=x*x sq
Length=5+5=10cm
(x+10)(x+10)=x sq=400
x sq +10x+100-x sq=400
20x+100=400
20x=400-100
x=300
x=300 upon 20
=15
Area of lawn =15*15=225m sq
so the answer is 225m sq ​

Answer 1

Step-by-step explanation:

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