Area of a Rectangle

Find out the area ( in $\mathrm{square} \mathrm{centimetre}$ ) of the rectangle whose length and breadth are as $13.5 \mathrm{cm}$ and $10 \mathrm{cm}$.

Find out the area ( in $\mathrm{square} \mathrm{centimetre}$ ) of the rectangle whose length and breadth are as $12 \mathrm{cm}$ and $6 \mathrm{cm}$.

Find out the area ( in $\mathrm{square} \mathrm{centimetre}$ ) of the rectangle whose length and breadth are as $10 \mathrm{cm}$ and $1 \mathrm{cm}$.

Find out the area ( in $\mathrm{square} \mathrm{centimetre}$ ) of the rectangles whose length and breadth are as $6 \mathrm{cm}$ and $2 \mathrm{cm}$.