Answer:
45 deg
Step-by-step explanation:
let each of the other angles be x deg
it is given that the other 2 angles are equal, hence the 3 angles are 90 deg, x deg and x deg.
recall that the interior angles of a triangle always add up to 180 deg
hence,
90 + x + x = 180 deg
90 + 2x = 180
2x = 90
x = 45 deg
