Answer:
∠a = 45°
Step-by-step explanation:
We are told that △abc and △xyz are congruent.
Thus;
∠a = ∠x
∠b = ∠y
∠c = ∠z
We are given;
∠y = 90°
Thus, ∠b = 90°
Now,we are told that ∠a is one half the size of ∠b.
Thus; ∠a = ½ × ∠b
∠a = ½ × 90
∠a = 45°
If its a reflection across the y axis the x value is reflected and the y value stays the same, so (-3,7)
Answer:
Option A
Step-by-step explanation:
c - 12 > - 16
c > -16 + 12
c > -4