## anonymous one year ago Need help, not a test, Homework. I need to find the angle of decent for a plane. Can someone help me start?

1. anonymous

2. anonymous

@ganeshie8 are you able to help sorry to ask.

3. anonymous

I only have to do one side :D

4. anonymous

Thank you for helping! Anyway how should I begin? :3

5. ganeshie8

what are the instructions ? what exactly are we supposed to do ?

6. anonymous

Just find the angle of descent I believe using cos tan or sin

7. ganeshie8

but they gave four options are we supposed to pick any one option and work angle of descent for that ? |dw:1433385070524:dw|

8. anonymous

oh yes!! I picked the first one :3

9. ganeshie8

okay good start by labeling the given dimensions altitude always refers to the height

10. ganeshie8

|dw:1433385235096:dw|

11. anonymous

Ah ok, now should I begin finding it by using tan?

12. ganeshie8

Opposite side = 15042 Hypotenuse = 30924 which trig ratio involves Opposite and Hypotenuse ?

13. anonymous

that would be sin

14. ganeshie8

Yes so use sin ratio : $\large \sin(x) = \dfrac{15042}{30924}$

15. ganeshie8

$\large x = \sin^{-1}\left(\frac{15042}{30924}\right)$ use ur calculator

16. anonymous

for the sin-1 I got 29.105438462

17. ganeshie8

Correct! maybe round it to 29.11 degrees

18. anonymous

Thank you so much!

19. ganeshie8

yw!

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