Answer:

Step-by-step explanation:
The fact that the figure is a cube means all sides, faces, and corners are equal.



Answer:
$12.60
Step-by-step explanation:
12x.05 = .6 then .6+12 is 12.6
sorry if this is wrong lol
Answer:
42
Step-by-step explanation:
Answer:
162°
Step-by-step explanation:
To find the measure of an interior angle in a regular n-gon, we use the formula:
(n - 2)(180) / n
We substitute 20 in for n to get:
(20 - 2)(180) / 20
And simplify:
(18)(180) / 20
(18)(9)
162°
Number 3 is the answer but the precise answer would be 1 1/3