Stefan is measuring the angles of a triangle. He measures the first angle and gets a measure of 90°. What does he know about the other two angles? A) They are each 45°. B) They should add up to be 270° C) Their measures should add up to be 90° D) He doesn't know anything about the other two angles.

Respuesta :

i 100% positive the answer is C) Their measures should add up to be 90°  i just took the test and the answer above me is 100% wrong

Answer:

C

Step-by-step explanation: