Answer:
I believe it is D
<em>if this is right I would really appreciate brainliest!</em>
Step-by-step explanation:
hope this helps!
Answer:
missing angle = 30 degrees
Step-by-step explanation:
all triangles have an interior angle or 180 degrees.
to find the missing angle, just take the know angles and add them together:
120 + 30 = 150
then take the sum and subtract it from 180:
180 - 150 = 30