A) L = 12 cm, B = 4 cm
B) L = 20 cm, B = 8 cm
C) L = 20 cm, B = 12 cm
D) L = 12 cm, B = 8 cm
Correct Answer: C
Solution :
Length of rectangle = x cm Breadth of rectangle = (x - 8) cm Perimeter of rectangle = 2(x + x - 8) = 2(2x - 8) Given 2(2x - 8) = 64 \[\Rightarrow \] 2x = 40 \[\Rightarrow \] x = 20 L = 20, B = 20 - 8 = 12You need to login to perform this action.
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