Q7 of 112 Page 156

The side BC of an equilateral 3ABC is parallel to x–axis. Find the slope of AB and the slope of BC.

Slope of line BC:


The side BC is parallel to x–axis.


Slope of the side BC = 0.


Slope of line AB:


Since, this is an equilateral triangle each angle is 60°


∴ θ = 60°


m = tan θ


= tan 60°


= √3


Hence, the slope of AB is √3 and the slope of BC is 0


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