1. The inradius of triangle is 4 cm and its area is 34 sq. cm. the perimeter of the traingle is
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By: anil on 05 May 2019 01.49 am
Area of triangle = in-radius $$ imes$$ semi-perimeter In radius = 4 cm Let perimeter of triangle = $$x$$ cm => Semi-perimeter = $$frac{x}{2}$$ cm => Area = $$4 imes frac{x}{2}=34$$ => $$2x=34$$ => $$x=frac{34}{2}=17$$ cm => Ans - (B)
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