Answer:
a = 40°
Step-by-step explanation:
I. When total angle is 180 or half of circle
Find a or missing angle by
180 = 50 + 90 + x
180 - 140 = x
x = 40º
That makes a is 40º
Hope that help :)
Answer:
answer is: 11/10
Step-by-step explanation:
Answer:
5.5:1
Step-by-step explanation:
The answer to #1 is D.
The answers to #2 is B,C,D,F.. I'm not sure what the remainder of G says..