Respuesta :

Answer:

(b) NO

Step-by-step explanation:

It must have the square to to be a right angle

nathanieldillar0902

Answer:

A: It is obtuse

B: It is a right angle

Step-by-step explanation:

A: Angle RST equals 110*, if it is greater than 90*, it is obtuse

B: Right Angles are 90*, so this is simple, you subtract RST by UST, so 110-20=90