MCQEasy1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)
A(1, 4), B (4, 1) and C (x, 4) are the vertices of ΔABC If the centroid of the triangle is G (4, 3) then x is equal to
Topic: Section / midpoint / centroid
Previous-year question practice database
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Answer
Exam answer
(c) Centroid x-coordinate: (1+4+x)/3=4 ⇒ x=7.
Explanation
Use the coordinate-geometry formula relevant to the question, substitute the given coordinates, and simplify to obtain the stated result.
In words
Centroid x-coordinate: (1+4+x)/3=4 ⇒ x=7.
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