Answer:
40 degrees.
Step-by-step explanation:
right triangle means an angle that is 90 degrees.
so the measure of the missing angle :
90+50+x = 180(for sum of all angles is 180 degree) (and we are assuming missing angle as x)
therefore x= 180-(90+50).
that is 180-140.
there fore missing angle measure is 40 defrees