Answer:
a = 70°, b = 140°
Step-by-step explanation:
use alternate interior angles
The interior angles of a straight line are 180°
a = 180°-110° = 70°
b = 180°-40° = 140°
//I'm sorry, but I'm not very fluent in English.
h = 12 in
To find the height, divide the volume by the base:
2880 in^3
height: ------------------ = 12 in
240 in
