Nice... you might have put the wrong picture lol
I'll do part (a) to get you started.
The angle 'a' pairs up with the 123 degree angle as a corresponding angle pair. Due to the parallel lines, the corresponding angles are congruent. Therefore a = 123.
We also see that b = 123 as well since a = b (they are vertical angles).
Notice how angle c is adjacent to the 123 degree angle. These two angles form a straight line, so they must add to 180 degrees.
c+123 = 180
c = 180-123
c = 57
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To summarize, we have these three angles
a = 123
b = 123
c = 57
Answer:12
Step-by-step explanation:
84 because 36 x 2 =72 and then 1/3 of 36 is 12 and 12+72=84
Exact form : 4/13
decimal form : .0.307692
