## anonymous one year ago thanks

1. anonymous

2. anonymous

|dw:1433561751182:dw| basically we want to calculate the size of the base of that triangle...

3. anonymous

LoL, my draw looks pretty much like the pic!!

4. anonymous

pic wasn't there when i started drawing!

5. anonymous

ur good haha

6. anonymous

:D ok, so how you think we can calculate the base?

7. anonymous

150 times 40

8. anonymous

mmmm.... 150 is heght and 40º an angle, i dont think that will give us the base...

9. anonymous

sorry, that is incorrect. you have to use 2(tan theta)

10. anonymous

where theta is 90 - 40

11. anonymous

50

12. anonymous

100

13. anonymous

i get: $b=2\times 150\times tan(20º) \approx 109.2ft$

14. anonymous

wait so 109.2ft is the answer

15. anonymous

do you have an answer for this question ?

16. anonymous

that is what i get...

17. anonymous

so that the diameter right

18. anonymous

oh! i calculated the radius!! so d=2r=218.4ft sorry...

19. anonymous

thanks!!!

20. anonymous

yes that should be correct.

21. anonymous

yw!