It must be a and c, as these are the only two with four closed sides
The square root of 16=4, 4x2=8, x2=8.
Answer:
Step-by-step explanation:
Note that the sine wave is shifted up by 1/2 and the peak is at 5/2 so subtract the 1/2 from the 5/2 to get the amplitude of this wave.
It's 2
The answer is 166
180 - 14 = 166°