Answer:
110 degrees
Step-by-step explanation:
Because these angles are vertical, 5x+15=8x-42. thus, 15=3x-42, 3x=57, and x=19. 5x+15=5(19) +15=110. So, m<CDE=110 degrees.
Answer:
7
Step-by-step explanation:
Answer:
I can't really see the whole question, but for a cone the volume formula is πr2h
3
Step-by-step explanation: