Question

Tick (✓) the correct answer:
The sum of all interior angles of a hexagon is
(a) 6 right ∠s
(b) 8 right ∠s
(c) 9 right ∠s
(d) 12 right ∠s

Answer 1

(b) $8right\angle s$
Sum of all the interior angles of a hexagon is $\left(2n-4\right)$ right angles.
For a hexagon:
$$\begin{gathered} n=6 \\ \Rightarrow \left(2\mathrm{n}-4\right)\mathrm{right}\angle s=\left(12-4\right)\mathrm{right}\angle s=8\mathrm{right}\angle s \end{gathered}$$