If P 2 3 and Q 2 5 are points on a graph calcul... - WAEC Mathematics 2017 Question
If P(2,3) and Q)2, 5) are points on a graph, calculate the length PQ
A
6 units
B
5 units
C
4 units
D
2 units
correct option: d
\(\sqrt{(x_2 - x_1)^2 + (y_2 - Y_1)^2}\)
= \(\sqrt{(2 - 2)^2 + (5 - 3)^2}\)
= \(\sqrt{0^2 + 2^2}\)
= \(\sqrt{4}\)
= 2 units
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