1. Liv1234

2. confluxepic

I assume it makes a right angle because line AB is tangent. I believe you could solve this using the Pythagoras Theorem.

3. Liv1234

Can you help me solve it?

4. confluxepic

Sure. :)

5. confluxepic

$$\Huge a^2+b^2=c^2$$

6. Liv1234

So, 6^2+11.7^2=C^2?

7. confluxepic

a and b are the two sides and c is the hypotenuse.

8. confluxepic

a and b are the two sides that make a right angle.

9. confluxepic

AO would be the hypotenuse.

10. Liv1234

So, how would I put that into an equation? And by the way, thank you for your help, I appreciate it.(:

11. confluxepic

a=6 as in the question. b is unknown. c is the hypotenuse. In other words it is AO and its value is 11.7 as mentioned in the question.

12. Liv1234

Ohh. So, the answer would be 6^2+11.7^2?

13. confluxepic

$$\Huge 6^2+b^2=11.7^2$$

14. Liv1234

$6^2+11^2$

15. Liv1234

oops, I messed up.

16. confluxepic

I just substituted the values to where they belong.

17. Liv1234

Oh, so it would be C?

18. confluxepic

Can you tell me how you got C as the answer?

19. Liv1234

Yes, so I put in what 11.7^2 was and got 136.89. Then I put in 6^2+10.0^2 and got 136.

20. confluxepic

Correct but you did it the wrong way. The correct way it to do $$11^2-6^2=x^2$$.

21. Liv1234

Can you help me with another question?(:

22. Liv1234

23. Nnesha

|dw:1434216486710:dw| this straight line add up to 180 degree

24. Nnesha

set an equation |dw:1434216532709:dw| $\huge\rm 50+90+x=180$ solve for x

25. Liv1234

@Nnesha I got 230 for the answer, can you help me with another??

26. Nnesha

impossible ! i told you straight line add up to 180 degree all 3 angles should add up to 180 degree

27. Liv1234

So, 38?

28. Nnesha

typo it's 92 $\huge\rm 50+92+x=180$ solve for x

29. Nnesha

yep

30. Liv1234

So, it's 38. And can you help me with another question?

31. Nnesha

i'll try

32. Liv1234

33. Liv1234

@Nnesha

34. Liv1234

Can someone help?

35. Liv1234

@Nnesha

36. Nnesha

close this post and make a new one so other people can help i hve to go