A whole angle is equal to ___ right angles
4
2
3
1
A whole angle measures 360∘
360∘=4×90∘
⇒ A whole angle is equal to 4 right angles.
In the figure, ∠1=600 and ∠2=(23)th of a right angle. Prove that l ||m.
A straight angle is equal to ___ right angle(s).
A whole angle has ___ right angles