## evergirl 3 years ago What is the length of AB? Answer 13 cm 18 cm 22.98 cm 25.32 cm

1. evergirl

2. DoomDude

You would use sin,cos, and tan to solve

3. evergirl

yeah

4. DoomDude

Do you know how to solve and just want us to?

5. evergirl

6. DoomDude

ok, first off look at http://www.mathsisfun.com/sine-cosine-tangent.html and tell me what one you would need for the left one

7. evergirl

tan I think

8. DoomDude

@annas, you can help her the rest, you are better than I

9. evergirl

Nah your both equally smart. Thank you both!

10. DoomDude

he can explain it better though

11. evergirl

annas?

12. evergirl

can u help?

13. annas

wait let me understand the question

14. annas

15. evergirl

nope

16. annas

17. evergirl

ty

18. annas

this is a case of AAS angle angle side

19. annas

we'll divide the diagram into to angles for triangle A we are given 45 and 90 angles and a side 8 for triangle B 30 and 90 angles are given and a side 10 is given to find unknown angle 180- 90+45 and 180-30+90 to find base length use a/sinA = c/sinC