Question

Plz help me on this question

Answer 1

Let number $c=\sqrt{45}.$

Square this number:

$c^2=45.$

Since

$36$

you can state that

$\sqrt{36}$

Also $\sqrt{45}\approx 6.708$ and $6.5$, then point C is the best approximation of $\sqrt{45}.$

Answer: option C.