Answer: 20
Step-by-step explanation:
I suppose the figure that you do not include in your exercise is the one that I attached.
Looking at the figure, it is obvious that the angle COA is divided into two angles of 20 degrees each, so the answer would be 20.
Answer:

Its a right angle triangle so trigonometry is used.
a is the hypotenuse, b is the adjacent.
Use sin to find a. Use tan to find b.
I'm so hungry lol xD, the answer is C
Answer:
See explaination
Step-by-step explanation:
Please kindly check attachment for the detailed step by step solution of the given problem.
Perimeter of square is P = 4s.....s = length of 1 side
so ur function rule is : y = 4x