Answer:
The distance between the parallel sides is 20cm.
Step-by-step explanation:
Area of a trapezoid:

where a and b are the 2 bases, and h is the height. The value we're trying to find here is the height.
3 of the 4 variables in this equation are already given:
A = 800
a = 48
b = 32
Just plug those in and solve for h:

Answer:
Composite, Composite, composite
Step-by-step explanation:
all of them can be divided
Simply plug in the points (-1,-4) into the equations, and B is the only one that holds.
Answer:
I believe its proposition
Step-by-step explanation:
im almost 100% sure