B. triangle ABC is isosceles. The angles add up 180 degrees.
Answer:

This is the answer,the option C
Step-by-step explanation:
Answer:Math is important
Step-by-step explanation:
It could help you get into collage and get a good job and with that you could start your life.
No, 50 is not a perfect square. A perfect square is any number that can be divided by any number to get the quotient as the same number AND the quotient must be rational. When you divide 50 so that the quotient equals the divisor, you will get an irrational number. Therefore, 50 is not a perfect square.