<span>For the Vertical Angle theorem, if a slant line is intersected by a horizontal, the opposite angles must be equal. In here, he stated that the sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees. It means that the sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 by the transitive property of equality. </span>
.....Yep.
Or is there a second part to this problem?
Answer:
A 48
D 0
O 7.5 (fraction form: 7 1/2)
E 21
Next line
E 34
N 36.8 (fraction form: 36 4/5)
L 9
T 8
Step-by-step explanation:
A (a)(c)
A (12)(4)
A 48
D 48 - (a + c)
D 48 - (12 + 4)
D 48 - 48
D 0
O (5a)/8
O 5(12)/8
O 60/8
O 7.5
E (ab)/c
E (12)(7)/(4)
E 84/4
E 21
Next line
E 2b + 5c
E 2(7) + 5(4)
E 14 + 20
E 34
N c(9.2)
N 4(9.2)
N 36.8
L 72/2c
L 72/2(4)
L 72/8
L 9
T (2/3)a
T (2/3)(12)
T 8
(2/3) - (7/12)
= .0834
or in fraction form: 1/12
