9 cm
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a rectangle had a perimeter of 48 and the longest side is 15 find the lenght of a shorter side
6.4
The area of a rectangle of sides 9cm and 10cm is:9cm x 10cm = 90cm2This is equivalent to 0.009m2
If you're talking about a five sided figure, just add up your figures.
9cm is longer because 86mm is equal to 8.6cm.