A student claims that two different lines can be drawn perpendicular to a given line…
MATHEMATICS · Single correct · CBSE · Mathematics · Introduction to Euclid's Geometry · Introduction to Euclid's Geometry
Problem
A student claims that two different lines can be drawn perpendicular to a given line m at the same point P on it. Which fact directly contradicts this claim?
(a) All right angles are equal to one another.
(b) The sum of adjacent angles on a straight line is 180∘.
(c) Through any two points there is exactly one straight line.
(d) Things which coincide are equal to one another.