By Perpendicular lines, JK and LM meet at a 90° angle.
What is a perpendicular line?
Two lines that meet at a straight angle are called perpendicular lines. In the corner where the two lines converge, a right angle symbol is frequently used to indicate this.
From the corners of buildings to the branches of trees, perpendicular lines are seen everywhere. Perpendicular lines are those that cross at a straight angle of 90 degrees. Examples are the corners of a window, the sides of a set square, the arms of a clock, and the Red Cross emblem.
If JK ⊥ LM
then JK and LM meet at a 90° angle.
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