Question 454056: I am a parent trying help my 4th grader. He needs to find the perimetr and area for a rectangle. he knows how to do it when the sides are labeled the same such as feet or inches all the way around. However, 2 sides are labeled inches and the other 2 sides are labeled meters. How do you do it then? 2 sides are 4 inches and 2 sides are 2 meters. thanks for your help.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! I am a parent trying help my 4th grader. He needs to find the perimetr and area for a rectangle. he knows how to do it when the sides are labeled the same such as feet or inches all the way around. However, 2 sides are labeled inches and the other 2 sides are labeled meters. How do you do it then? 2 sides are 4 inches and 2 sides are 2 meters. thanks for your help.
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If no specific units are requested, for the perimeter you could answer
P = 4 meters and 4 inches.
It's better to pick units, tho.
1 inch = 2.54 cm exactly so I would use metric units.
P = 4 meters + 4*2.54 cm
= 400 cm + 10.16 cm
= 410.16 cm or 4.1016 meters
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For the area, the units have to be the same.
2 inches = 5.08 cm = 0.0508 meters
Area = 2 meters * 0.0508 meters
= 0.1016 sq meters
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