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Prove that points ( 4,3) (7,-1) and (9,3) are the vertices of an isosceles triangles |
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Answer» ONG>Answer: An ISOSCELES TRIANGLE is a triangle with (at least) two equal sides. Formula: Distance between two points= (x2–x1)2+(y2–y1)2−−−−−−−−−−−−−−−−−√(x2–x1)2+(y2–y1)2 A=(4,3)A=(4,3) B=(7,−1)B=(7,−1) C=(9,3)C=(9,3) |AB|=(7–4)2+(−1–3)2−−−−−−−−−−−−−−√|AB|=(7–4)2+(−1–3)2 |AB|=(3)2+(−4)2−−−−−−−−−−√|AB|=(3)2+(−4)2 |AB|=9+16−−−−−√|AB|=9+16 |AB|=2–√5|AB|=25 |AB|=5|AB|=5 Similarly, |AC|=(9–4)2+(3–3 |
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