Time limit!!

If mno=nmo, what statement best describes triangle MON
a.The triangle is scalene.
b.The triangle is equilateral.
c.The triangle is isosceles and possibly equilateral.
d.The triangle is isosceles but definitely not equilateral.

Respuesta :

For this item, it is assumed that mno and nmo are angles. It is given that they are of the same measures. A triangle with two angles already equal is said to be an isosceles. However, we are uncertain if the third angle has the same measure of the first two. That is why, the answer to this item is letter c. The triangle is isosceles and possibly equilateral. 

C) The triangle is isosceles and possibly equilateral.

I just took the quiz on edge.