Answer:
A) 90; C) 50
Explanation:
A right triangle has one right angle, so one angle measures 90 degrees. We are told another angle measures 40 degrees.
The sum of the measures of the angles of a triangle is 180° degrees.
40 + x + 90 = 180
x + 130 = 180
x = 50
Answer: A) 90; C) 50