1. What is the area (in sq cm) of a rectangle of perimeter 90 cm and breadth 20 cm?
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By: anil on 05 May 2019 01.45 am
Let length of rectangle = $$l$$ cm and breadth = $$b=20$$ cm Perimeter of rectangle = $$2(l+b)=90$$ => $$l+20=frac{90}{2}=45$$ => $$l=45-20=25$$ cm $$ herefore$$ Area of rectangle = $$lb$$ = $$25 imes20=500$$ $$cm^2$$ => Ans - (A)
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