Respuesta :

Answer:

a is 30 since it is the same as the angle about it

since we know that that triangle is 90 on one angle 30 on another and the angles add up to 180 we now that b is 60

since a straight like is 180 degrees if we look at c we can see its on a straight line so 180-75=105

a=30

b=60

c=105

Hope This Helps!!!

Answer:

a = 30 b = 60 c = 105

Step-by-step explanation:

a is 30 because the 30 on the oposite side is made bi the same crossing lines.

b is 60 since the sum of all the angles on a triangle is 180 so:

a + b + 90 = 180

b =  180 - 90 -30 = 60

and since 75 + c = 180 c = 105