calculusxy one year ago MEDAL!!! In parallelogram ABCD above, if sides AB and AD have lengths as shown, that is the length of the altitude to side AD? (Figure will be drawn below)

1. calculusxy

|dw:1442968342905:dw|

2. calculusxy

@phi

3. calculusxy

@peachpi @zepdrix

4. anonymous

what do you mean by "that is the length of the altitude to side AD" in the first place?

5. calculusxy

i don't know what that exactly means... or else i wouldn't have asked this question :\

6. anonymous

dont you mean like how high above ground level is the parallelogram?

7. anonymous

or something like that?

8. calculusxy

maybe ( or are you referencing the height)?

9. anonymous

altitude is a reference to how high above or how low below ground/sea level

10. anonymous

great, i just figured it out and i hate it

11. anonymous

are you in trig rn?

12. anonymous

@calculusxy i think i figured it out if you werent paying attention

13. calculusxy

no i don't know trig very well, but i can work with sine, cosine, tangent (only the basics)

14. anonymous

thats what this is

15. anonymous

line BC is going to be ground level for this

16. calculusxy

i don't quite understand what you mean

17. anonymous

if i remember right your going to use cosine to find the distance from line BC to line AD, giving you your answer (its either cosine or sine, i dont remember them that well)

18. anonymous

|dw:1442980427600:dw|

19. calculusxy

@surjithayer Can you plz explain this to me more?

20. anonymous

thx show off

21. anonymous

basically multiply the sine of 60 degrees by 12 to get your answer

22. anonymous

h is altitude |dw:1442980656562:dw|

23. anonymous

$\sin 60=\frac{ \sqrt{3} }{ 2 }$

24. anonymous

i just said everything he put up there in a nice sentence without any complication

25. calculusxy

and how do i evaluate that @surjithayer

26. anonymous

$h=12 \sin 60=12*\frac{ \sqrt{3} }{ 2 }=6\sqrt{3}$

27. anonymous

i like how i always start it then someone else comes in and takes all the fricken credit that i actually did before they did -_-

28. calculusxy

oh okay ! but is there any simper way of doing it?

29. anonymous

and the perfect example is the one above

30. anonymous

That's about the easiest way to do it with the given information.

31. anonymous

thx for saying i had no idea what im doing and that a person that does the exact same thing makes complete sense, can someone explain that one to me >:(

32. anonymous

i seriously think that letting someone finish there answer and explanation should be on the CoC