Which set of angles is an example of alternate interior angles?
2 answers:
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So one easy way is
divide both sides by 5
=t
multiply both sides by 6
times 
=6 times t or
=6t or
=6t
divide both sides by 5
multiply both sides by 6
Option C:
The measure of arc CD is 40°.
Solution:
Given data:
m∠X = 11° and m(arc AB) = 18°
To find the measure of arc CD:
We know that,
<em>Angle formed by two intersecting secants outside the circle is equal to half of the difference between the intercepted arcs.</em>
Multiply by 2 on both sides.
22° = arc CD - 18°
Add 18° from both sides.
40° = arc CD
Switch the sides.
arc CD = 40°
Hence the measure of arc CD is 40°.
Option B is the correct answer.