1. The length of the diagonal and the breadth of a rectangle is 13 cm and 5 cm respectively. Calculate its area (in $$cm^2$$).





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  • By: anil on 05 May 2019 02.04 am
    Let the length of rectangle = $$l$$ cm and breadth, $$b=5$$ cm => Diagonal, $$d^2=l^2+b^2$$ => $$l^2=(13)^2-(5)^2$$ => $$l^2=169-25=144$$ => $$l=sqrt{144}=12$$ cm $$ herefore$$ Area = $$12 imes5=60$$ $$cm^2$$ => Ans - (A)
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