## A.Y_swagger 3 years ago What is the perimeter of triangle ABC? Round to the nearest tenth.

1. A.Y_swagger

2. Tinman

how much is one block

3. A.Y_swagger

idk

4. juan_9292

each block is one unit

5. Tinman

yea but does he want yhe ans in units

6. juan_9292

I don't think so, I guess It'll be just each block = 1unit... not necessary cm, nor m, nor none of those. since a unit isn't specific I think its appropriate

7. juan_9292

A.Y_swagger; based on the figure you pretty much know the length of CB and AB. once you know that just use the Pythagorean theorem. A^2+B^2=c^2 once you know C^2 get the sqrt and then just add up A B C

8. A.Y_swagger

yea ok

9. A.Y_swagger

cb = 5 units ab = 3 units

10. A.Y_swagger

how does that get me my answer

11. juan_9292

with that you now know two sides of the right triangle. You still need to find out the hypotneus idk how to spell it,

12. juan_9292

which to find it you use the theory I mentioned above

13. A.Y_swagger

a^2 + b^2 = c^2?

14. Tinman

hypotenuse

15. juan_9292

yea, and then just solve for c

16. juan_9292

thanks Tinman

17. Tinman

yea np

18. A.Y_swagger

for my final answer i got 15

19. juan_9292

its should be less, show me how you found c; perhaps I confused you

20. Tinman

21. Tinman

juan_9292 r u still there

22. juan_9292

a^2+b^2=c^2 where c= √(a^2+b^2) = √(5^2+3^2)=√25+9) = √(34) so to find the perimeter you add up all of them. 5+3+√(34) which as Tinman found=13.83 and yea, just having internet problems now and then

23. Tinman

or ok cuz i was goin to explain

24. juan_9292

I was waiting to see if A.Y_swagger sent his work, but he didn't so I posted it up.

25. chris325