You want to combine both equations so it would be the first option.
54900 not very hard just do 610 by 90
If triangle ABC is congruent to triangle DEC, then all the lengths and angles in the one triangle are equal to their corresponding lengths and angles in the other triangle.
In other words, Angle B = Angle E
x+15 = 6x-65
Now solve for x:
-80 = 5x
-16 = x
Answer:
2C + 10
Step-by-step explanation:
Answer:
<em>37.3° </em>
Step-by-step explanation:
sin β = ⇒ β = arcsin = <em>37.3°</em>