## anonymous 4 years ago See 18 and 20 Pic

1. anonymous

2. anonymous

take the square root fo the ratios

3. anonymous

first one for example $\frac{4}{16}=\frac{1}{4}$ so ratio of the perimeter is $\frac{\sqrt{1}}{\sqrt{4}}=\frac{1}{2}$

4. saifoo.khan

When sat gets free, http://openstudy.com/study#/updates/4f4300f3e4b065f388dc75ef

5. anonymous

How did you get 4/16?!?!

6. anonymous

it said ratio was 4 to 16 in the first one

7. anonymous

Oh i thought it was 18 can you do 18?

8. anonymous

so i just made it in to a fraction

9. anonymous

yes $\frac{75}{12}$ reduces conveniently to $\frac{25}{4}$ now you can easily take the square root and get $\frac{5}{2}$

10. anonymous

ahh thanks

11. anonymous

similarly $\frac{49}{9}$ take the square root directly get $\frac{7}{3}$ etc got it?

12. anonymous

yeah! Thanks!

13. anonymous

yw

14. anonymous

medal for me? :D