Question 82

Slope of the side DA of the rectangle ABCD is 1/3. What is the slope of the side AB?

Solution

Sides DA and AB are perpendicular to each other and product of slopes of two perpendicular lines = -1

Let slope of side AB = $$m$$ an slope of side DA = $$\frac{1}{3}$$

=> $$m \times \frac{1}{3} = -1$$

=> $$m = -3$$

=> Ans - (D)

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