## rebecca1233 2 years ago Find the perimeter of the following polygon.

1. rebecca1233

|dw:1362244727495:dw|

2. rebecca1233

26 29 36 39

3. rebecca1233

@sami-21

4. rebecca1233

@ZeHanz

5. rebecca1233

6. rebecca1233

i thougth times but that isnt right

7. tcarroll010

Look at just the left half of the diagram for now. You have a right triangle and you have the measures of 2 sides, so you can use the Pythagorean Theorem: x^2 + 12^2 = 13^2 You can get x^2 from that and then get "x" Your perimeter will be easy from there.

8. rebecca1233

9. rebecca1233

?

10. rebecca1233

i mean 13+13

11. rebecca1233

+12+12

12. tcarroll010

Well, first, you have to solve: x^2 + 12^2 = 13^2

13. rebecca1233

12*12?

14. rebecca1233

12+12 = 24

15. tcarroll010

Hint: subtract 12^2 from each side.

16. rebecca1233

ugh

17. rebecca1233

18. rebecca1233

am i correct

19. tcarroll010

Don't worry, I'll help you: (x^2 + 12^2) - 12^2 = 13^2 - 12^2 x^2 + (12^2 - 12^2) = 13^2 - 12^2

20. tcarroll010

Yes, 36 is the answer! You got it!

21. tcarroll010

Good luck to you in all of your studies and thx for the recognition! @rebecca1233

22. rebecca1233