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Straight Lines — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsStraight Lines1 Mark
MCQ
What is the distance between $(1, 3)$ and $(5, 6):$
  • A
    $3$ units
  • B
    $4$ units
  • ✓
    $5$ units
  • D
    $25$ units
✓

Answer

Correct option: C.
$5$ units
We know, distance between two points $(x_1, y_1)$ and $(x_2, y_2)$ is $\sqrt{(\text{x}_{1}−\text{x}_{2})^2+(\text{y}_{1}−\text{y}_{2})^2.}$
So, distance between $(1, 3)$ and $(5, 6)$ is $\sqrt{{(1-5)}^2+{(3-6)}^2}$
$= (4)^2+ (3)^2$
$= 5$ units

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