Respuesta :

goodingenes
Isosceles means the bottom right angle is also 65, so to add up to 180, the final angle (B) must be 50.
clarch19

Answer:

m∡b = 50°

Step-by-step explanation:

this is an isosceles triangle so the other base angle also measures 65°

there are 180° in a triangle so m∡b = 180-(65+65) or 50°