A) 6 cm
B) 11 cm
C) 22 cm
D) 121 cm
Correct Answer: C
Solution :
Breadth of rectangle = x cm \[\therefore \]Length of rectangle \[=(x+5)\,\,\text{cm}\] \[\therefore \] \[x\,\,(x+5)=24\] \[\Rightarrow \] \[{{x}^{2}}+5x-24=0\]\[\Rightarrow \]\[(x+8)(x-3)=0\] \[\therefore \] \[x=-\,\,8\] or 3 \[\therefore \] Length \[=3+5=8\text{ cm}\] and Breadth = 3 cm \[\therefore \]Perimeter \[=3+8+3+8=22\text{ cm}\]You need to login to perform this action.
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