Question

What is the relation among a right angle, a straight angle and a complete angle?

Answer 1

Straight angle $$\begin{gathered} =180° \\ =2\times 90° \end{gathered}$$

Straight angle$=2$ right angles

Complete angle $$\begin{gathered} =360° \\ =4\times 90° \end{gathered}$$

Complete angle$=4$ right angles

Hence, Straight angle$=2$ right angles and Complete angle$=4$ right angles