Answer:

Step-by-step explanation:
Opposite angles of an inscribed quadrilateral are supplementary, so ...
m∠A + m∠C = 180°
Substituting the given expressions, we have ...
(3x +6)° + (x+2)° = 180°
4x +8 = 180 . . . . . . collect terms, divide by °
x +2 = 45 . . . . . . . . divide by 4
3x +6 = 135 . . . . . . multiply by 3
This is the value of angle A in degrees, so ...
m∠A = 135°
Set up a system of equations using the sum and difference equation.
x + y = 180 <em>definition of supplementary angles</em>
+ <u>x - y = 35</u>
2x = 215
x = 107.5
x + y = 180 ⇒ 107.5 + y = 180 ⇒ y = 72.5
Answer: 107.5 and 72.5
(1,0) and (6,2) are not on the same line and I don't understand the last question
Answer:
1.2 degrees
Step-by-step explanation: