Answer:
C. 
Step-by-step explanation:
We have been given a triangle. We are asked to find the measure of angle Z using Law of cosines.
Law of cosines: 
, where, a, b and c are sides opposite to angles A, B and C respectively.
Upon substituting our given values in law of cosines, we will get:
Now, we will use inverse cosine or arc-cos to solve for angle Z as:
Therefore, the measure of angle Z is approximately 51 degrees.
Pythagorean theorem: a^2 + b^2 = c^2
a^2 + 16^2 = 65^2
a^2 + 256 = 4225
a^2 = 3969
a = 63
Perimeter: add all sides
63 + 16 + 65 = 144
Solution: 144 feet
Answer:
Step-by-step explanation:
0.03550295857
There’s an app for math equations that big I just forgot the name
Answer:
Step-by-step explanation:
It's not exactly true.
Suppose s = 4
It is a factor of 16. The greatest common factor between 4 and 16 is not 16. It would only be 4.
So the answer to the question is false.
