Answer:
C) Rotated parallel lines always remain parallel lines.
Step-by-step explanation:Rotated parallel lines remain parallel lines.
Rotation is a rigid transformation, so the lines remain parallel.
8)
is -0.896 radians
9) length of arc is 41.91 cm
Solution:
8)
Given that,

is in quadrant 4
To find: 
From given,

Thus value of
is -51.34 degrees
Convert degrees to radians

Thus
is -0.896 radians
9)
From given,
radius = 15.4 cm

<em><u>The length of arc when angle in radians is:</u></em>

Thus length of arc is 41.91 cm
<h2>
Answer:</h2>
<u>The length of hypotenuse of triangle is:</u><u>40.24 units</u>.
<h2>Explanation:</h2>
check the attach picture for solution.
I wrote the answers in the pictures...