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Relation between Inradius and Perimeter of Triangle

In ABC, rig...

Question

In $△ A B C$ , right angles at $B,$ $A B = 24 c m, B C = 7 c m$ . Determine :
(i) $s i n A, c o s A$
(II) $s i n C, c o s B$

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Solution

$A C = \sqrt{{(24)}^{2} + {(7)}^{2}} = 25 (i) sin A = \frac{7}{25} cos A = \frac{24}{25} (i i) sin C = \frac{24}{25} cos B = 0$

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