8. CBQ - Find the tiling area

Question:

4 m.

A tiny park is coming up in Dhauli. The plan is shown in the figure. The two square plots, each of area $l^2$ $sq.ft$., will have a green cover. All the remaining area is a walking path of $b$ $ft$ wide that needs to be tiled. Write an expression for the area that needs to be tiled.

Answer:

Side length of the square is _________ $ft$.

$\frac{l}{2}$
$2 l$
$l^{2}$
$l$

Total length of the rectangular park is __________ $ft$.

$4 (b + l)$
$2 (b + l)$
$2 (2 b + l)$
$4 (2 b + l)$

Total breadth of the recttangular park is __________ $ft$.

$2 b - l$
$2 b + l$
$4 b + l$
$b + l$

The expression for the area that needs to be tiled is __________ $ft^2$.

$b^{2} + l b - l^{2}$
$8 (b^{2} + l b)$
$8 (b^{2} + l b - l^{2})$
$b^{2} + 8 l b - l^{2}$

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