Plz help will be marked BRAINLIEST
Thanks!

Answer:
a) 60°
b) 60°
c) 30°
Step-by-step explanation:
Get 60 by subtracting 30 from 90 because the angle is a right angle. Since b is identical to a and also is a right triangle, it will also be 60. Get c as 30 by looking at its vertical angle across from it.