Question

Ginni's height is measured at $142cm$. What is her height in (a)$metres,$and (b) $millimetres$?

Answer 1

Assumptions:

$$\begin{gathered} 1cm=0.01m \\ 1cm=10mm \end{gathered}$$

Step 1: Given Data:

Length$=142cm$

Step 2: Converting unit to m and mm

So, length$=142cm=142\times 0.01m=1.42m$

length$=142cm=142\times 10mm=1420mm$

Hence, there are 1.42 m or 1420 mm in 142 cm