Answer:
∠WMX = 73
Step-by-step explanation:
Half the triangle into two, congruent angles.
Total measure of a triangle is 180°.
As you know, two angles needed to find the third angle.
So we find those two angles.
The triangle we should focus on is ΔWXY since we need to find ∠WXY or ∠X
First, ∠Y has a measure of 90° because it is created by the perpendicular bisector WY.
Second angle, ∠W is found since ∠YWZ or ∠W measures 17°.
So now we have 2 angles to solve for the third angle.
∠WXY = x
90 + 17 + x = 180°
107 + x = 180
x = 180 - 107
x = 73
