A) 6 cm
B) 4 cm
C) 2 cm
D) 5 cm
Correct Answer: A
Solution :
Let the missing length be x cm. Given that, perimeter = 23 cm \[\Rightarrow \text{ }4+5+8+x=23\] \[\Rightarrow x=23-17=6\] \[\therefore \] Missing length = 6 cm
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