Manisha Paul Solutions for Chapter: Mensuration, Exercise 4: Worksheet - 60

Find the length of a rectangle whose breadth measure $15 \mathrm{m}$ and has an area of $450$ square metres.
Length of the rectangle $=$_____$\mathrm{m}$.
 

Find the side of a square whose area is $225$ square metres.
Side of the square $=$_____$\mathrm{m}$.

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 _____ ${\mathrm{cm}}^2$. $\left(160/56\right)$

Find the missing values in the given rectangles.
$l=24 \mathrm{m}, b=$______, $A=288 {\mathrm{m}}^2$
 

Find the missing values in the given rectangles.
$l=$______, $b=13 \mathrm{m}$  $A=325{ \mathrm{m}}^2$
 

Find the missing values in the given rectangles.
$l=64 \mathrm{m}, b=$_______, $P=236 \mathrm{m}$