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Straight Lines — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsStraight Lines1 Mark
MCQ
Which of the following points are $10$ units from the origin:
  • A
    $(6, 4)$
  • ✓
    $(-6, 8)$
  • C
    $(6, -8)$
  • D
    $(-6, -8)$
✓

Answer

Correct option: B.
$(-6, 8)$
$\text{A} =\sqrt{ (6-0)^{2}+(4-0)^{2}} = \sqrt{52}$
$\text{B} =\sqrt{ (6-0)^{2}+(8-0)^{2}} =10$
$\text{C} =\sqrt{ (6-0)^{2}+(-8-0)^{2}} =10$
$\text{D} =\sqrt{ (-6-0)^{2}+(-8-0)^{2}} =10$

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