If isosceles triangle abc has a 130° angle at vertex b, which statement must be true?
(attached file)

B is the answer
Choice-a). two equal angles.

-- Choice-b).
-- Choice-c). If they were each 60°, then the total
for the triangle would be (130+60+60) = 250° .

-- Choice-d). two equal angles.

Here for a good time of free question aha