Final value of a if distance between the points (-9 cm, a cm) and (3 cm, 3cm) is `13` cm.
Text Solution
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`y/5=sin 53^(@)=4/5 rArr y=4 cm` and `x/5=cos 53^(@)=3/5 =. X=3 cm` Perimeter of the triangle `=x+y+5=3+4+5=12 cm`
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