Question

youre building a backdrop so there wont be distractions in the background of your videos. the backdrop will be supported by two perpendicular supports, as shown in the image. which definition best describes what it means for lines ab and cd to be perpendicular? line ab is perpendicular to line cd if ab and cd intersect to form supplementary angles. line ab is perpendicular to line cd if their intersection forms a right angle. line ab is perpendicular to line cd if the measure of ∠aoc equals the measure of ∠aob. ab is perpendicular to line cd if ab and cd intersect at a 45 - degree angle.

Explanation:

Perpendicular lines are defined as lines that intersect to form a 90 - degree (right) angle. Supplementary angles add up to 180 degrees, 45 - degree intersection is not the definition of perpendicularity, and the equality of non - right angles like ∠AOC and ∠AOB is not relevant to perpendicularity.

Answer:

Line AB is perpendicular to line CD if their intersection forms a right angle.