A book contains $360$ pages which measure $20 \mathrm{c}\mathrm{m}$ by $14 \mathrm{c}\mathrm{m}$. Every page has a blank margin $2.5 \mathrm{c}\mathrm{m}$ deep along each short side and $2 \mathrm{c}\mathrm{m}$ deep each long side. If the total area available for printing is $k c{m}^2$, then find the value of $k$.

A garden is $24 \mathrm{m}$ long and $14 \mathrm{m}$ wide. There is a path $1 \mathrm{m}$ wide outside the garden along its sides. If the path is to be constructed with square marble tiles $20 \mathrm{c}\mathrm{m}\times 20 \mathrm{c}\mathrm{m}$, find the number of tiles required to cover the path.

A typist uses a sheet measuring $20 \mathrm{c}\mathrm{m}$ by $30 \mathrm{c}\mathrm{m}$ length wise. If a margin of $2 \mathrm{c}\mathrm{m}$ is left on each side and a $3 \mathrm{c}\mathrm{m}$ margin on top and bottom, then the percent of page used for typing is

The area of parallelogram is $k c{m}^2$, then find the value of $k$.

Find the area of parallelogram.

If the area of parallelogram is $A {\mathrm{m}}^2$ for the following values then find $A$.

Find the area of parallelogram.

Find the area of parallelogram.

Find the missing measures:

Area of parallelogram $ABCD=72 {\mathrm{cm}}^2; DE=8 \mathrm{cm}; AB=?$