## katlin95 2 years ago Find the length of side GF A. 31.95 B. 25.3 C. 73.8 D.56.5 Give me a sec gota draw it:)

1. katlin95

|dw:1363993414259:dw|

2. yoyointegrals

im gonna guess A ;P

3. yoyointegrals

is this a right triangle?

4. katlin95

yep

5. yoyointegrals

ok, so a^2 + b^2 = c^2

6. yoyointegrals

where a is what we want (or b, doesn't matter)

7. yoyointegrals

c = 71^2

8. yoyointegrals

a (or b) = 43^2

9. yoyointegrals

and solve for the remaining variable (remember to square root it)

10. katlin95

my answer I got was C, would that be correct guys?

11. yoyointegrals

nope. lemme write the equation.

12. yoyointegrals

$\sqrt{(71^2 - 43^2)}$

13. yoyointegrals

= a

14. katlin95

okay I got 2 sqrt 798 so my answer would be A?

15. yoyointegrals

i don't see how you got 798. are you squaring the 71 and 43?

16. katlin95

I used subtraction

17. yoyointegrals

you have to square the numbers then subtract, then square root. start by doing 71 ^2, what is that

18. robtobey

$2 \sqrt{798}=56.4978$

19. yoyointegrals

or that, that works^

20. katlin95

Alright so my answer would then be D:)! Right?

21. yoyointegrals

yes ma'am

22. katlin95

Thanks for helping me!:)

23. yoyointegrals

sorry if i confused you

24. katlin95

its alright:)