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प्रश्न
Find the co-ordinates of the centroid of the Δ PQR, whose vertices are P(3, –5), Q(4, 3) and R(11, –4)
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उत्तर
Co- ordinates of the centroid of triangle PQR are
`((3+4+11)/(3),(-5+3-4)/(3))`
`=(6,-2)`
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Solution:
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A(8, 9) = (x1, y1), B(1, 2) = (x2, y2) and P(6, 7) = (x, y)
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∴ `square` = 2n
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