Answer:
The answer is C. 4.5. Hope that helps.
Step-by-step explanation:
25 sq rt of 3 = 43.3
30 degrees = X 60 = X sq rt of 3. 90 degrees = 2x
For calculating the mean, you want to add up all of the numbers then divide by how many numbers there are. So you'd do:
5+10+12+4+6+11+13+5 then divide that by 8
The answer to your question is: 8.25
ABCDEFGH = 22.
HEFG = 12
ABCD = 10