Answer:
11
Step-by-step explanation:
140-129=11
The answer is infinetely many solutions.
6+6=6+6
12=12
Answer:

Step-by-step explanation:
We are asked to find the measure of each exterior angle of a regular dodecagon.
We know that a regular dodecagon is a 12 sided regular polygon with each side equal.
We know that measure of each angle of n-sided regular polygon can be found using formula:

Upon substituting
in above formula, we will get:


Therefore, the measure of each exterior angle of a regular dodecagon is 30 degrees.
Answer:
The value of x is 16.
Step-by-step explanation:
We are given the following in the question:
c and d are complementary angles.
Measure of c = 
Measure of d = 26
Since c and d are complementary, we can write from property of complementary:

Putting values, we get,

Thus, value of x is 16.
Answer:
A,B,D
Step-by-step explanation: