Answer:
0.5
Step-by-step explanation:
Use the unit circle
Answer:
4*sides
Step-by-step explanation:
4*sides is the Answer
Answer:

Step-by-step explanation:
Given




Required
The perimeter
First, calculate the distance between each point using:

So, we have:




So, the perimeter (P) is:


By the law of cosines, the angle

satisfies

which reduces to

which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
72% as a decimal is 0.72.
72% as a fraction is 72/100 = 18/25.