You may have heard about a train bound for Bicol
that was derailed from its path. The accident happened because some parts of
its railroad were stolen or dislocated, and it claimed so many lives, including
those of children.
Buildings are designed to be perpendicular to the
horizontal ground so that the gravitational pull will be directed
perpendicularly to the ground. On the other hand, the railroad of a train is
designed to form a pair of parallel lines. These are some important designs
that use the concepts of perpendicular and parallel lines.
Share what you know about parallel lines and perpendicular lines.
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