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AP EAMCET · Maths · Straight Lines

If A(1,3) and C(7,5) are two opposite vertices of a square, then find the equation of a side passing through A.

  1. A x=y
  2. B x-2 y+1=0
  3. C x-3 y+8=0
  4. D 2 x-y+1=0
Verified Solution

Answer & Solution

Correct Answer

(D) 2 x-y+1=0

Step-by-step Solution

Detailed explanation

Let ABCD be a square where A≡1,3 & C≡7,5. ∴ Equation of diagonal AC is y-53-5=x-71-7 ⇒ 3y-15=x-7 ⇒ 3y-x-8=0  ...1 ∴ Slope of AC is 13 Suppose slope of AB is m. ∵ Diagonal makes 45° with…