D) The measures of the non- right angles in each triangle .
4x°=75-x° this might be wrong but I’m sure
Answer:
r = 5
Step-by-step explanation:
The formula for volume of a cone is 
h = 6
V = 50π

r = 5
6 - (-2) - 3(-5) = (6 + 2) + 15 = 8 + 15 = 23
Your answer is D. the last one :)
I could use the points so if you want to mark this as helpful that would be cool :)