Question

12 which is an example of parallel lines? 14 what is the slope of any line perpendicular to a line that has a slope of 9/5? 5/9 -9/5 undefined -5/9 15 the figure shows supplementary angles. what is the measure of angle d? 45° 180° 135° 16 the shaded region represents— a line segment an angle part of a plane a triangle

Explanation:

Step1: Recall the property of supplementary angles

Supplementary angles add up to \(180^{\circ}\). Let the measure of angle \(D\) be \(x\). We know that \(x + 45^{\circ}=180^{\circ}\).

Step2: Solve for \(x\)

Subtract \(45^{\circ}\) from both sides of the equation: \(x=180^{\circ}- 45^{\circ}\).

Answer:

\(135^{\circ}\)