1. kelly226

2. Skyrider21

x is 7.5 and y is 14

3. Skyrider21

ps i sent you a message

4. kelly226

ik:P how did u get those answers?

5. Skyrider21

well x was half of the hypotenuse and you times x by the square root of 3.

6. Skyrider21

to get y

7. kelly226

oohh ok.. wb Y?

8. Skyrider21

i dont know what that means

9. kelly226

what bout Y? how did u get Y?

10. kelly226

hah sorry..:/

11. kelly226

ooh i mean X.. how do u get X? cuz that was for Y right?

12. zpupster

that answer is wrong becasue when you have a 90-45-45 triangle the other sides are always equal.

13. Skyrider21

oh, oops, i thought is was a 30-60-90 triangle sorry

14. kelly226

so how do u do a 90 - 45 - 45 triangle?

15. kelly226

ik that y would be 15 sqrt of 2.. but how do i find X?

16. zpupster

no x and y will be the same

17. kelly226

really? ooh.. how do u find it?

18. zpupster

A= unknown angle, b =known angle 45 and c = 90 sinB =AC/AB=Opp/hyp

19. zpupster

AC = AB x sinB

20. kelly226

then i just substitute in?

21. kelly226

u lost me...:/

22. zpupster

label the angles in the drawing first

23. kelly226

what drawing? mine?

24. zpupster

yes

25. Skyrider21

sup im back what did i miss?

26. kelly226

umm.. confusing stuff.. that i dont get..

27. Skyrider21

oh well on my reference sheet it says the hypotenuse is equal to x to the square root of 2 and the other two sides are x, so i guess both x and y =15

28. Skyrider21

thats what it says for a 45-45-90 triangle

29. kelly226

really?! thaaanksss:D

30. Skyrider21

31. kelly226

but how did u get 15?

32. zpupster

15 is indeed the answer, but did you see how it was calculated

33. zpupster

the sides you are looking for are AC or BC C being the right angle the def of the sine of and angle is OPP/ hyp

34. kelly226

no..

35. zpupster

AB is the hyp or 15sprt2

36. zpupster

did u get that part

37. zpupster

what part are u missing

38. kelly226

oh nvm.. i guess im not..thaaanks:)

39. zpupster

anothr time then later