Answer:
B, but I may be wrong.
Step-by-step explanation:
Hi there!

We know that the equation for the volume of a pyramid is:
V = 1/3(bh)
We know that:
V = 200 km³
b = 12 × 5 = 60 km²
We can plug these into the equation:
200 = 1/3(60)(h)
Simplify:
200 = 20h
Divide both sides by 20:
200/20 = 20h/20
h = 10 km
Answer:
B) Line EG and OM
Step-by-step explanation:
We already know that EF and ON are congruent as well as angle MON and GEF so that means that the only thing we need to know to make it SAS would be EG and OM because we already have the angle and with that length then we know that line FG will be congruent to NM. We would not want to compare NM and FG because then we would get AS* not SAS.
Answer:
I really don't know , I am in 7th grade