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Introduction to Three Dimensional Geometry — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsIntroduction to Three Dimensional Geometry1 Mark
MCQ
The centroid of triangle $A(3, 4, 5), B(6, 7, 2), C(0, -5, 2)$ is:
  • ✓
    $(3, 2, 3)$
  • B
    $(5, 2, 1)$
  • C
    $(2, 5, 1)$
  • D
    $(3, 4, 1)$
✓

Answer

Correct option: A.
$(3, 2, 3)$
$A (3, 4, 5), B (6, 7, 2), C (0, -5, 2)$ Centroid is given as.
$\Big(\frac{3+6+0}{3},\frac{4+7-5}{3},\frac{5+2+2}{3}\Big)$
$=\Big(\frac{9}{3},\frac{6}{3},\frac{9}{3}\Big)$
$=(3, 2, 3)$

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