All we can determine from the information that you have given us is that
yz should be proportionally related to bc, because their triangles are similar.
Obtuse angle because is more than 90 degrees but less than 180 degrees.
Step-by-step explanation:
m < QRS = m < URS + m < QRU
30x - 4 = 60° + 15x - 4
15x = 60°
X = 4°
<u>m < QRS</u> = 30 * 4 - 4 = <u>116°</u>
The other line extends slightly down and to the right to point E
