If m 2X = 34º and m ZZ = 26, what is mZY?
OmZY = 26
OmZY = 34
mZY = 60°

Answer:
The measure of the angle Y in given triangle is 120 º.
Step-by-step explanation:
Here, in ΔXYZ
∠X = 34 º , ∠Z = 26 º
By, ANGLE SUM PROPERTY of a Triangle:
Sum of all the interior angles in any given triangle is always 180 º.
⇒ ∠X+ ∠Y + ∠Z = 180 º
or, 34 º + ∠Y + 26 º = 180 º
or, ∠Y = 180 º - 60 º
⇒ ∠Y = 120 º
Hence, the measure of the angle Y in given triangle is 120 º.
Answer:
D. m∠Y = 120°
Step-by-step explanation:
Sorry if this was a late answer, but I hope this helps! :D