Question

Find out the area of a square of side 5 cm in - a. dm² b. mm²​

Answer 1

Explanation:

a.5cm=0.5dm

area=0.5×0.5

=0.25dm

b.5cm=50mm

area=50×50

=2500mm

Answer 2

Question : Find out the area of a square of side of 5cm in a. dm square b.mm square.

$\huge\star{\green{\underline{\mathrm{Answer: -}}}}$

Area of square in cm unit = Side×Side

$\Longrightarrow$ 5 × 5

$\Longrightarrow$ 25 square cm .

Hence the area of square in deci metre square =

25 ÷ 100 = $\huge{\frac{25}{100}}$

$\Longrightarrow$ 0 . 25 decimetre square.

And the area of square in milimetre square is =

25 × 100 =2500 milimetre square.

Additional information:

$\Longrightarrow$To change the units from larger units to smaller units, we multiply by 100 if the unit is given in square units.

$\Longrightarrow$ To change the units from smaller to larger units, we divide by 100 if the unit is given in square units.

Here is a table of higher units to lower units which is suitable for gram, litre and metric units:

$\Longrightarrow$kilo

$\Longrightarrow$hacto

$\Longrightarrow$deca

$\Longrightarrow$metre, gram, litre

$\Longrightarrow$deci

$\Longrightarrow$centi

$\Longrightarrow$mili