A square lawn is surrounded by a path $2\mathrm{m}$ wide.if the area of the path is $240 \mathrm{m}$,find the area of lawn.

A rectangular park is of dimensions $32\text{m}\times 25\text{m}$. If two walkways of width $2\text{m}$ each are running parallel to the length of the rectangle and inside it a lawn has to be created, then find the area of the park where a lawn can be created.

Find the area of the following parallelogram whose babe $\left(b\right)$ and height $\left(h\right)$ are as follows.

$b=15$ cm and $h=12$ cm

Find the area of the following parallelogram whose babe $\left(b\right)$ and height $\left(h\right)$ are as follows.

$b=7.2$ cm and $h=4.8$ cm

Find the area of the following parallelogram whose babe $\left(b\right)$ and height $\left(h\right)$ are as follows.

$b=12.1$ cm and $h=5.1$ cm

Find the area of following triangle whose base $\left(b\right)$ and height $\left(h\right)$ are as follows.

$b=7$ cm and $h=7$ cm

Find the area of following triangle whose base $\left(b\right)$ and height $\left(h\right)$ are as follows.

$b=11.5$ cm and $h=12$ cm