Answer:
x = 21.013155617496
Step-by-step explanation:
we have a right triangle then ,

Then

Then
x ≈ 21
I don’t know I need points
Volume of a cylinder formula is

You have to subtract the degrees like in this picture:
Answer:
Step-by-step explanation:
Straight angle is equal to 180°
Angle x, 60° and 80° form a straight angle.
<u>Then we have following equation to solve for x:</u>
- x + 60° + 80° = 180°
- x + 140° = 180°
- x = 180° - 140°
- x = 40°