Bonjour,
On a :
[tex] \frac{6}{r} = \frac{H - 2}{r} \Leftrightarrow \: H - 2 = 6\Leftrightarrow \: H = 6 + 2 = 8[/tex]
[tex]r = \sqrt{H {}^{2} + 6 {}^{2} } = \sqrt{8 {}^{2} + 6 {}^{2} } = \sqrt{64 + 36} = \sqrt{100 } = 10[/tex]
On a donc r = 10
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Bonjour,
On a :
[tex] \frac{6}{r} = \frac{H - 2}{r} \Leftrightarrow \: H - 2 = 6\Leftrightarrow \: H = 6 + 2 = 8[/tex]
[tex]r = \sqrt{H {}^{2} + 6 {}^{2} } = \sqrt{8 {}^{2} + 6 {}^{2} } = \sqrt{64 + 36} = \sqrt{100 } = 10[/tex]
On a donc r = 10
=> angles à côtés perpendiculaires