Answer:
Step-by-step explanation:
The missing angle of the triangle is 180°-42°-60° = 78°.
x° = 180°-78° = 102°
Answer:
Same Side Exterior Angles
Step-by-step explanation:
They are on the same side of the line and both angles are exterior of the other two lines.
X = ± √<span>6 </span><span>= ± 2.4495 because i know it</span>
Answer:
10
Step-by-step explanation:
4x+8+3x+12=90
x=10
this is the solution hope it's helpful