Answer :
Let the third side be p,
By Pythagoras theorem,
⇒ 92 + p2 = 152
⇒ 81 + p2 = 225
⇒ p2 = 144
⇒ p = 12
Therefore, the other angles are:
cos A =
tan A =
cosec A =
sec A =
cot A =
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Foundation | Trigonometic Ratio38 mins


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