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Find the distance of the point (1, 2) from the mid-point of the line segment joining the points (6, 8) and (2, 4). |
Answer» Let D(x, y) be the midpoints of A(6, 8) and B(2, 4). Let our third given point be C(1, 2). By midpoint formula. x = \(\frac{x_1+x_2}2\), y = \(\frac{y_1+y_2}2\) For midpoint D of AB, x = \(\frac{6+2}2\) and y = \(\frac{8+4}2\) ∴ x =4 and y = 6 ∴D(x, y) ≡ (4, 6) Now to find distance between C and D, By distance formula, XY = \(\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\) For CD, CD = \(\sqrt{(4-1)^2+(6-2)^2}\) = \(\sqrt{9 + 16}\) = 5 units |
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