STAN TXT AND STREAM IF BORED
We know that
and this is the only point when sin and cos are equal lengths. Because both 
Now if the sin of 30° is a half that would mean that cos of 60° is also a half.
Hope this helps.
<u>r3t40</u>
Answer:
21110
Step-by-step explanation:
D is your answer
Have a good day :)