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| 1. |
Are the points (-3,-3),(-3,2)and(-3,5)collinear?give reason. |
| Answer» For collinear,Area of triangle = 01/2[x1(y2-y3) + x2(y3-y1) + x3(y1-y2) = 0(-3)(2-5) - 3(5+3) - 3(-3-2) = 09 - 24 + 15 = 024 - 24 = 00 = 0Since Area of traingle = 0therefore, points are collinear. | |