Answer:
a = 45°, x = 90°
Step-by-step explanation:
2a + x + 2a + x = 360°
2a = x because they are the same two angles. 2 out of 4 angles = 1/2. 1/2 x 360° = 180°
2a + x = 180°
Since 2a = x, that means x has to equal to 90 and 2a has to also equal to 90
180°/2 = 90°
x = 90
2a = 90
2a/2 = 90/2
a = 45°
2(45) + 90 = 180°
90 + 90 = 180
180 = 180
