Yessica-You will learn how to solve a equation as fast as lighting.
Yessica- The problem is the perimeter of a triangle is 400 cm. The length is 20cm greater than the width. What is the width???
Yareth- Well even though this problem looks hard It's N0t......
Yessica- Yes you are right...You can solve this problem in five seconds
Yareth-We know that the whole perimeter equals 400 cm.
- Yessica-What we did we made it shorter and simpler.
- So you divide 400 by 4.
- once you have divided your answer is 100
- So by that you know all the sides are 100 because a rectangle has all its sides the same.
- So for the width you add 20 centimeters because in the equation it says the width is 20 centimeters more.
- So your final answer should be 120 for the width ....For the length you will have to subtract 20 now from 100 because it was 16 centimeters less than the width... Your final answer for the length should be 80. That wasn't so hard was it ???
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