Answer:
∠72°.
Step-by-step explanation:
If a circle has a circumference of 20 and an arc with a length of 4, we can simply set up a ratio to determine the angle of the arc in degrees:

Cross multiply:

Divide both sides by '20':
x = 72°.
Therefore, the measure of the central angle of the arc is ∠72°.
volume of a cylinder = V = πr²h, r = radius and h = height.
if r = 3 and h = 4, then V = π3²(4) => V = 36π => V ≈ 113.1.
A composite has more than 2 ways to divide itself
Answer:
b
Step-by-step explanation:
Hope this helped! Please tell me If I'm wrong!