Respuesta :

All angles of a triangle sums up to 180 degrees

a° = 3a + 90 = 180°

   3a = 180 - 90

   3a = 90

     a = 90÷3

     a = 30°

b = 180-(25+90)

b = 180 - 115

b = 65°

PLEASE MARK THIS ANSWER THE BRAINLIEST

Answer:

b= 65 a=25 and 2a=32.5

Step-by-step explanation: