the sum of all interior angles in a polygon is
180( n - 2)
n = number of sides
now, this polygon is a quadrilateral, so it has 4 sides, so it's total is just 180( 4 - 2) = 360.

Answer:
64°
Step-by-step explanation:
Angles in a straight line add up to 180° so 180° - 116° = 64°
Answer:
-1
Step-by-step explanation:
If i = √-1, then i^2 = -1.
Answer:
The volume is 75
Step-by-step explanation:
because the volume is the width, length, and height, add them together.