A) 4m 90 cm
B) 490m
C) 49m
D) 49cm
Correct Answer: A
Solution :
Perimeter \[=21\text{ }m=2100\text{ }cm\] Length \[=5\text{ }m\text{ }60\text{ }cm=560\text{ }cm\] Width \[=\frac{P}{2}-l\] x \[=\left( \frac{2100}{2}-560 \right)\,cm\] \[=490\text{ }cm=4\text{ }m\text{ }90\text{ }cm\]You need to login to perform this action.
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