This is the most easier question anyone has asked yet. kill me
Answer:

Step-by-step explanation:

Adding 2a to both sides

Taking sqrt on both sides

Seventy- two thousand three hundred twelve
Answer:
Y = 170, Z = 64.
Step-by-step explanation:
Since y is the external angle to x, which you got right, it is in fact, 180-10, = 170 degrees. And since z is the external to our unknown angle, that means it is equal to the sum of the other two angles in the triangle. That means z is 54 + 10, which is 64.