Question

$1sq$$cm = $$m$$sq$$mm.$ Find \[m?\]

Answer 1

Hint: Find a relation between 1 cm and 1 mm. Then use it to solve the above question.

Complete step-by-step answer:
Units are standards for measurement of physical quantities that need clear definitions to be useful. Reproducibility of experimental results is central to the scientific method. A standard system of units facilitates this.
We know that,
$1cm = 10mm$
By squaring both the sides, we get
${\left( {1cm} \right)^2} = {(10mm)^2}$
$\Rightarrow$ $1{cm^2}$ = $100{mm^2}$
Therefore, the correct answer of this questions is $m = 100$

Note: Geometrically, we can say that a unit represents a line. Sq. unit represents area and cubic unit represents volume. While solving this question, you need to remember that you can’t just square the unit. You will also have to square the values associated with the units when you square them.