1. Explain what you think each word means when it is used to make a comparison.
a) ratio-part to part
b) percent-part to part
c) fraction-part to whole
d) difference –part to whole
2) Give an example of a situation using each concept to compare two quantities. (150 total seventh graders, 80 girls, 70 boys)
a) ratio-70:80
b) percent-87.5%
c) fraction-70/80
d) difference-10

1) What has to be the same in order for two parallelograms to be similar?
The ratio's and the angles have to be the same because if the angles were'nt the same the parrelelogram would not be the same figure and perimeter.
2) Describe a way to find a missing side length in a pair of similar figures.
If there is a missing side length you would find the scale factor and then mutiply the smaller # to the bigger #.
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? The missing side length would be 10in because the scale factor is x2.5 and if you multiply 4x2.5 you would get 10in.

assinment #3

(1)10in. 8in.5in. 4in.

(2)The angles are all the same.

(3)The area is only 2x smaller becaue it is not 100% smaller other wise it would be 4x smaller