Answer:
21°
Step-by-step explanation:
The sum of angles in a triangle is 180°.
A right angle is 90°.
Therefore, the remaining two angles will be:
= 90°/2 = 45° each.
Therefore, the value of x will be:
2x + 3 = 45
2x = 45 - 3
2x = 42
x = 42/2
x = 21°.
