The base is 5 because the base = 2 Area/Height
Slope:2
y intercept: 5
so if your test has like a graph the dot will be at y=5
When two angles are supplementary, that means that the sum of their individual angles is equal to a straight line, which is 180°. If you add another restriction where the two supplementary angles are equal, then each vale of the angle constitutes half of 180°. Then, that means that ∠A = ∠B = 90°. The answer is C.
