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.
 
        
             
        
        
        
Answer:
1. Prime numbers are easier to count.  (Not a statement)
2.Irrational numbers can be written as fractions. (Statement)
3. Natural numbers can be negative. (Statement)
4.  Addition is the simplest mathematical operation. (Not a Statement)
5. Equilateral triangles are quicker to construct than scalene triangles.  (Not a statement)
6. The set of real numbers is infinite. (Statement)
i hope it will help you!
 
        
             
        
        
        
Answer:
425ft.
Step-by-step explanation:
Just add 395 and 30 together.
Hope this helps. Pls give brainliest!