Answer:
Step-by-step explanation:
If YS bisects ∠XYZ at Y, this means that ∠XYS = ∠SYZ
Given
m∠XYS=34.2∘.
Since m∠XYS=34.2, then ∠SYZ will also be 34.2°
Also, ∠XYZ = ∠XYS + ∠SYZ
∠XYZ = 34.2°+34.2°
∠XYZ = 68.4°
Hence the measure of ∠SYZ is 34.2° and ∠XYZ is 68.4°
