Question

Express as metres using decimals: $2\mathrm{m}45\mathrm{cm}$

Answer 1

Convert from centimeter to meter

Given, $2\mathrm{m}45\mathrm{cm}$

Which is $2\mathrm{m}+45\mathrm{cm}$

We know that,

$\begin{array}{rcl}1\mathrm{cm}& =& 0.01\mathrm{m}\\ & \Rightarrow & 45\mathrm{cm}=45\times 0.01\\ & =& 0.45\mathrm{m}\end{array}$

Thus,

$\begin{array}{rcl}2\mathrm{m}45\mathrm{cm}& =& 2\mathrm{m}+0.45\mathrm{m}\\ & =& 2.45\mathrm{m}\end{array}$

Therefore, $2\mathrm{m}45\mathrm{cm}$ can be expressed in decimal as $2.45\mathrm{m}$.