It’s prime because none of the other answers work.
Answer:c,d,f I think
Step-by-step explanation:
Answer:
Is there any picture for it?
Step-by-step explanation:
Answer:

Step-by-step explanation:
--- sides





Required
The measure of B
The interior angles of a polygon is:

So, we have:



The measure of B is calculated using:

Substitute known values

Collect like terms


Collect like terms

