Question

Pls answer h part with explanation

Answer 1

${a}^{2} = 36 \\ a = 6 \\ perimeter = 4a = 4 \times 6 = 24$

Answer 2

InOrder to find the cost of levelling the path, we first have to find the area of the path.

To Find the area, we first have to, find the area of the rectangular lawn.

So, The area of the lawn =

$Length*Breadth\\50m*30m\\1500m^{2}$

So The area of the lawn is 1500 square meter.

Now we have to find the area of the lawn with the path included.

So here it is =

$Length*Breadth\\(50+(3.5+3.5))*(30+(3.5+3.5))\\(50+(7))*(30+(7))\\57*37\\2109m^{2}$

So, Now we have The Area Of The lawn with the path.

Now to find the area of the path.

We Have To Subtract the area of the lawn from area of the lawn with path.

So We Get =

$Lawn \: with \: path - Lawn\\2109-1500\\609m^{2}$

So The Area of the path is 609 square meter.

Cost =

$609*5 \\3045$

3045 Rupees

Hope it helped you.

Mark as the brainliest.