Triangle ABC is an obtuse triangle with the obtuse angle at vertex B. Angle A must be

less than 90°.
greater than 90°.
congruent to angle B.
congruent to angle C.

Respuesta :

Answer:

greater than 90°.

Step-by-step explanation:

Answer:

The answer would be the first choice, less than 90°.

Step-by-step explanation:

The angles within a triangle add up to 180°.  If an angle is obtuse in the triangle (greater than 90°), it is impossible for the other angles to be obtuse or equal to 90°.