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The altitude A D of a Delta A B C , in...

The altitude `A D` of a `Delta A B C ,` in which `/_A` obtuse and, `A D=10c mdot` If BD=10cm and CD=`10sqrt(3)c m ,` determine `/_Adot`

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ΔABC is a right triangle , right angled at D such that = 10 cm and BD = 10 cm
Then, `tan∠BAD=(BD )/(AD)`
`⇒tan∠BAD=(10)/(10)=1 `
`⇒tan∠BAD=tan45^@` ...
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