∠1 = 50°
∠2=70°
If ∠3 is exterior ansgle with respect to ∠1 and ∠2, ∠3 must be ∠1+∠2 = 50°+70° =120°..Whereas, the interior angle with ∠3 will be 180°-120°=60°
It is simple !!
just find what ℅ is 18 of 90 !
so,
(18/90)×100 = 20 ℅ ....answer !!
Answer:
Step-by-step explanation:
Subtract 42 on both sides.
Divide 1/2 on both sides.