Question

In a right $△ABC$, the lengths of is legs are given as $a=6cm$ and $b=4.5cm$. Find the length of its hypotenuse.

Answer 1

Using pythagoras theorem,

${\text{Hypotenuse}}^2=a^2+b^2$

$\Rightarrow$ Hypotenuse $=\sqrt{6^2+{\left(4.5\right)}^2}=\sqrt{36+20.25}=\sqrt{56.25}=7.5$