MCQ
The three points $(-2,2), \,(8,-2)$ and $(-4, -3)$ are the vertices of
- AAn isosceles triangle
- BAn equilateral triangle
- ✓A right angled triangle
- DNone of these
$b = \sqrt {{{( - \,4 - \,8)}^2} + {{( - \,3 + 2)}^2}} = \sqrt {145} $
$c = \sqrt {{{( - \,4 + 2)}^2} + {{( - \,3 - 2)}^2}} = \sqrt {29} $
$ \Rightarrow \,\,{a^2} + {c^2} = {b^2}$
Hence it is right angled triangle.
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$1$
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$a$
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$a^2$
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$....$ |
$a^n$
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| $f$ |
$^nC_0$
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$^nC_1$
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$^nC_2$
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$....$ |
$^nC_2$
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