Theorem 6.1 - if 2 POLYGONS are alike, then the ratio of their perimeters is the same as the ratios of their corresponding side lengths.
example.- (shown above) answer:::: x=32
*(use picture below)*
To understand how this works think about what happens when you use a copying machine. The machine uses scale factors to figure out if you want to copy exactly as it is (100%), make it smaller (less than 100%), enlarge it (more than 100%).
test question 1) If you put 50% as your scale factor in the machine, what happens?
test question 2) If you put 200% as your scale factor in the machine, what happens?
answer 1): you make a copy where everything looks half as big
answer 2): you make a copy where everything looks twice as big.
*(use picture below)*
To understand how this works think about what happens when you use a copying machine. The machine uses scale factors to figure out if you want to copy exactly as it is (100%), make it smaller (less than 100%), enlarge it (more than 100%).
test question 1) If you put 50% as your scale factor in the machine, what happens?
test question 2) If you put 200% as your scale factor in the machine, what happens?
answer 1): you make a copy where everything looks half as big
answer 2): you make a copy where everything looks twice as big.