Answer:

Step-by-step explanation:
Given


Required
The volume of the sphere
This is calculated as:

So, we have:


This gives:


Soo what do you need help with? It seems pretty easy. I can help you if you want.
no for a
yes for B
no for c
that what I think It is opinion could be wrong
Answer:
79 degrees
Step-by-step explanation:
First, you want to find the interor angles.
Since there are 180 degrees in a triangle...180-(27+52)=101 degrees
And the bottom line is a straight line so it's equal to 180 degrees as well.
180-101=79 degrees