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The perimeter of a triangle formed by the points (0,0), (1,0)and (0, 1) is …………….units. A) √2 B) 2 + √2 C) 2 – √2 D) 2 √2 |
Answer» Correct option is (B) 2 + √2 Given vertices of triangle are \(A(0,0),B(1,0)\;and\;C(0,1).\) \(\therefore\) \(AB=\sqrt{(1-0)^2+(0-0)^2}\) \(=\sqrt{1+0}\) = 1 units, \(BC=\sqrt{(0-1)^2+(1-0)^2}\) \(=\sqrt{1+1}\) = \(\sqrt2\) units and \(AC=\sqrt{(0-0)^2+(1-0)^2}\) \(=\sqrt{0+1}\) = 1 units \(\therefore\) Perimeter of formed triangle ABC \(=AB+BC+AC\) \(=(1+\sqrt2+1)\) units \(=2+\sqrt2\) units Correct option is B) 2 + √2 |
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