To find: Whether the beams QR and ST are perpendicular or not. Explain.
Answer to Problem 2CYP
Beams are not perpendicular to each other.
Explanation of Solution
Given information:The given beam QR has end-points
Concept used: If a line is perpendicular to another line then the slope of that line will be negative reciprocal.
Calculation: Slopeof the beam QR through the points
Similarly, slopeof the beam QR through the points
From (1) and (2) the slopes of beam QR and ST are not negative reciprocal to each other. Hence, the beams are not perpendicular to each other.
Chapter 4 Solutions
Algebra 1
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