Wednesday, April 11, 2007

Area of a Triangle Rap

To get the area of a triangle
Don't add up!
It's at an angle,
Multiply!
It's okay, you don't have to try!
But it's fun!
And I'm gonna tell you how to get it done!

Now I'm gonna tell you how,
Remember,
If you wanna get the area right,
Just multply, Base times height!

But that's not all,
Cut the answer in half,
It's easy like the notes on a staff!
You've got the area!
You've got it down flat,
Congrats,
And that is that!

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!!!