Answer:
72
Step-by-step explanation:
A full rotation takes 360°. From the picture, it would take 5 rotations to achieve such full degree rotation. Hence, each bit of rotation covers 360°÷5=72°
(((x4) + ((22•3x31) • x2)) - 12x
Coplanar
do not intersect
answer is paralell lines
9514 1404 393
Answer:
Step-by-step explanation:
Vertical angles have the same measure, so we can equate expressions for each vertical angle pair:
<u>top and bottom</u>
8x +7 = 9x -4
11 = x . . . . . . . . . . add 4-8x to both sides
<u>left and right</u>
7y -34 = 5y
2y = 34 . . . . . . . . add 34-5y to both sides
y = 17 . . . . . . . divide by 2
_____
<em>Additional comment</em>
As a check on the integrity of the problem, we can see if these angles form linear pairs.
8x+7 = 8·11+7 = 95
5y = 5·17 = 85
95 +85 = 180 . . . . . . angle values have the expected relationship