## -Welp- one year ago Is this correct?

1. -Welp-

|dw:1438254653856:dw| =170^2

2. Astrophysics

What are you trying to find? Area?

3. -Welp-

Yes.

4. Astrophysics

What did you do for 170^2

5. Astrophysics

$A_{\square} =a^2~~~~~A_{\triangle} = \frac{ 1 }{ 2 }bh$

6. -Welp-

Oops. I got 30-60-90 mixed up with this. I just tried using soh cah toa and got o=10 a=10 h=10^2, which doesn't make any sense. I'm not sure what to do now

7. Astrophysics

I'm going to redraw it, |dw:1438255686271:dw| does this look right

8. -Welp-

Yes

9. Astrophysics

Ok so we know that's a square and a triangle, agree?

10. Astrophysics

So for the base of the triangle we can simply do $b = 22-12 = 10$ as we know the side of the square is 12, and all the sides of the square are the same.

11. Astrophysics

|dw:1438255835677:dw| so we have this now

12. -Welp-

It's a rectangle and a triangle

13. Astrophysics

Well a square is a special rectangle, but if you could upload an image it would be better, but I think this is right.

14. Astrophysics

|dw:1438255987163:dw|

15. -Welp-

"Well a square is a special rectangle" Oh http://i.imgur.com/8zzdyhK.png

I think it's a square.

17. Astrophysics

Yeah me to..looks like a square to me

Since the height is 12 and the width is 12.

19. Astrophysics

Yes, it's a square, so now you can get the total area using $A_{total} = a^2+\frac{ 1 }{ 2 }ab$ Where a = 12 b = 10

20. Astrophysics

I'm going to make sure though, lets just use some trig. |dw:1438256489005:dw|

21. Astrophysics

Yeah, so it's not a square...we can use the tan ratio $\tan \theta = \frac{ opp }{ adj } \implies \tan \theta* adj = opp \implies \tan(45)*10 = opp = 10$

22. Astrophysics

So this is our new drawing |dw:1438256643590:dw| that makes much more sense as well

23. Astrophysics

because a 45 - 45 - 90 triangle would have 10 base and 10 height

24. Astrophysics

Boo yeah!

25. Astrophysics

So we have Area of rectangle + Area of triangle = total area

26. Astrophysics

$A_{total} = lw+\frac{ 1 }{ 2 }bh$

27. Astrophysics

The original image was kind of hard to tell, maybe it's because I'm too tired :p But now you should be able to get it, just plug and chug at this stage.

28. Astrophysics

@-Welp- Do you understand now? There was just a slight confusion but it's now fixed.

29. -Welp-

Yep

30. UsukiDoll

I'm on openstudy through the old domain... @Astrophysics otherwise I wouldn't get on at all

31. Jhannybean

32. Astrophysics

Yeah, there's a lot of lag for me lol

33. UsukiDoll
34. UsukiDoll

35. Jhannybean

Much much better thank you.

36. UsukiDoll

thank goodness for the old domain. way better than openstudy.com 's version

37. anonymous

|dw:1438257780003:dw|

38. Jaynator495

Explosive Diarrhea