Homework Help: Math, geometry

Posted by Serena Fan on Wednesday, February 15, 2012 at 6:53pm.

The perimeter of a rectangular red sticker is 30 millimeters. The sticker is 4 millimeters tall. How wide is it?

Math, geometry - MIKE, Wednesday, February 15, 2012 at 7:22pm
perimeter of a rectangle = 2width + 2length

30= 2w+2(4)
30= 2w+8
22= 2w
w= 11 millimeters

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