Answer:
x = 60°, y = 30°
Explanation:
The sum of the triangle angles is always 180°
Therefore 90° + x + y = 180°
It is also known that x = 2y
// combine the given value of x into the previous expression
90° + 2y + y = 180°
2y + y = 180° - 90°
3y = 90°
// divide both sides by 3
y = 30°
// then combine the given value of y into the expression x = 2y
x = 2 * 30°
x = 60°