Answer:
45°
Step-by-step explanation:
three angles in a triangle sum up to 180
90° + a + a = 180°
90° + 2a = 180°
2a = 180°-90°
2a = 90°
a = 45°
The top answer on your screen is the answer. Hope this help
A because two negatives make a positive
A line parallel to x-axis has 0 slope.
Step-by-step explanation:
The fraction is 4/10 * 2/9 = 4/45.
