For the given trapezoid the correct term for [tex]\bar{RL}[/tex] is altitude.
What is altitude?
" Altitude is defined as the perpendicular distance between the two points as per given reference point. It is also known as height."
According to the question,
A. Base : Lowest part of the given polygon. Here base is equals to TW
Option A is not a correct answer.
B. Altitude : Perpendicular distance between two parallel lines.
For the given trapezoid altitude is RL. As it is a perpendicular distance between parallel lines RE and TW.
Option B is a correct answer.
C. Leg: Leg is one of trapezoid sides. There are four sides of the given trapezoid. RL is not a side of the given trapezoid.
Option C is not a correct answer.
D. Apothem : Distance between center and midpoint of one of the side of polygon. RL is not a apothem.
Option D is not a correct answer.
Hence , Option (B ) is the correct answer.
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