Lines and intersect at

MATHEMATICS · Single correct · CBSE · Mathematics · Pair of Linear Equations in Two Variables · Pair of Linear Equations in Two Variables

Problem

Lines

x + 2y = 6

and

x - y = 3

intersect at

P

. Let

Q

be the projection of

P

on the

x

-axis and

R

be the projection of

P

on the

y

-axis. What is the perimeter of triangle

PQR

? (a)

4 + \sqrt{17}

(b)

5 + \sqrt{17}

(c)

5 + \sqrt{15}

(d)

6 + \sqrt{17}

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