Wednesday, April 4, 2007

Finding Perimeter and Area

Okay, so, pretend there is a rectangle. It's length is 30mm, and it's width is 2mm. Now, this info tells you that there is 2 2mm's, and 2 30mm's seeing as a rectangle has four sides. Now you add up all the sides. So that's 30mm+30mm+2mm+2mm=64mm2. Get it?

To find area, you multiply, base times height (if the shape is a rectangle or a parallelogram). It's very simple! Now, pretend there is a pentagon, the bottom side is 3mm, and the other sides are 2mm. Multiply the sides and you've got your answer!!!

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