A straight angle is equal to ___ right angle(s).
2
1
4
3
A straight angle measures 180∘
180∘=2×90∘
⇒ A straight angle is equal to 2 right angles.
A straight angle is = _____ right angles.
A straight angle is __________ rt. angles. [2/4]
Specify the following angles as acute, obtuse, right, straight or reflex .
(1) ∠PQO
(2) ∠PMN
(3) ∠MNO
(4)∠PQN,∠PON
How many right angles equal a straight angle?