Answer:
m<ZXY - m<WXZ = m<WXY
Explanation:
given:
point Z is in the interior of <WXY creating XZ.
if m<WXZ = 20
m<WXY = 100
find:
what would equation would you set up to find the missing angle measure?
solution:
Since Z is interior of <WXY
m<ZXY - m<WXZ = m<WXY
<WXY = 100 - 20 = 80°
therefore, the equation would be m<ZXY - m<WXZ = m<WXY