Question

question 8 (multiple choice worth 4 points) (01.05a mc) kyle is creating a frame for a model car. he begins by piecing two rods together, as shown in the diagram. justify why ∠aec is a right angle. definition of parallel lines definition of perpendicular bisector definition of complementary angles definition of adjacent angles

Explanation:

The symbol of a right - angle (square symbol) at the intersection of the two lines indicates that the lines are perpendicular. By the definition of perpendicular lines, the angles formed are right angles. Here, $\angle AEC$ is formed by two perpendicular lines, so it is a right angle based on the definition of perpendicular lines.

Answer:

Definition of perpendicular lines