Find the area of a rectangle whose adjacent sides are $13 \mathrm{cm}$ and $10 \mathrm{cm}$.
Area of the rectangle $=$ ${\mathrm{cm}}^2$.
 

Choose an appropriate answer from the brackets and fill in the blanks. 

The side of a square is $7 \mathrm{cm}$. If its side is doubled, then its new perimeter is _____$\mathrm{cm}$. $\left(14/56\right)$
 

Choose an appropriate answer from the brackets and fill in the blanks. 

The side of a square is $12 \mathrm{cm}$. If its side is doubled, then its new area is _____ ${\mathrm{cm}}^2$.
$\left(576/288\right)$
 

Choose an appropriate answer from the brackets and fill in the blanks. 

The length and breadth of a rectangle are $10 \mathrm{cm}$ and $8 \mathrm{cm}$ respectively. If its length is doubled, then its new area is _____ ${\mathrm{cm}}^2$. $\left(160/56\right)$