. Explain what you think each word means when it is used to make a comparison.
a) ratio-part to part
b) percent-part divdide by whole
c) fraction-part to whole
d) difference –sudtracting

2) Give an example of a situation using each concept to compare two quantities. (150 total seventh graders, 80 girls, 70 boys)
a) ratio-80:70
b) percent-114%
c) fraction-80/70
d) difference- 80/150=53 70/150=46

math reflections 4

Investigation 4 Math Reflections
Answer the following questions on YOUR blog as a post. Use the same title as mine for your post. Write your answers in complete sentences! An easy way to do this is to copy and paste the questions below onto your post and then put your answers in a different color!1) What has to be the same in order for two parallelograms to be similar?The way for the shape to be similar is they have to have the same angles and to have the same scale factor.

2) Describe a way to find a missing side length in a pair of similar figures.Divide the numbers that have numbers then take the answer then multiply it by the side length.

3) I have a small isosceles triangle with a base of 3 inches and other sides are 4 inches.I want to create a similar isosceles triangle with a base of 7.5 inches.What should the other side lengths be and why?
I did 7.5 divide it by 3 and got 2.5. Then multiply by 4 by 2.5and got10.