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Thursday, January 8, 2015

Parallel Lines Problems

Category: Plane Geometry

"Published in Newark, California, USA"

Two lines are cut by four parallel lines of equal distance as shown in the figure. Find the values of x and y.

Photo by Math Principles in Everyday Life

Solution:

Consider the given figure above

Photo by Math Principles in Everyday Life

If a theorem says "If three or more parallel lines cut off congruent segments on one transversal, then they cut off congruent segments on every transversal.", then we can equate the two line segments in order to solve for the value of x as follows




Finally, equate the other two line segments in order to solve for the value of y as follows