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A straight line passes through the point P 1 2 ... - WAEC Mathematics 2016 Question

A straight line passes through the point P(1,2) and Q
(5,8). Calculate the length PQ

A
\(4\sqrt{11}\)
B
\(4\sqrt{10}\)
C
\(2\sqrt{17}\)
D
\(2\sqrt{13}\)
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Correct Option: D

|PQ| = (\sqrt{(x_2 - X- 1) + (y_2 - y_1)^2})

= (\sqrt{(5 - 1)^2 + (8 - 2)^2})

= (\sqrt{4^2 + 6^2})

= (\sqrt{16 + 36})

= (\sqrt{52})

= 2(\sqrt{13})

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