ArkGoLucky 2 years ago Drawing attached

1. wio

=)

2. ArkGoLucky

|dw:1358141893836:dw|

3. ArkGoLucky

find x

4. wio

Oh wow, looks like a bit of algebra

5. blahblah_who_cares

Nah. Pretty sure its geometry. ArkGoLucky are u sure u arent missing anything in the problem such as a 90 degrees angle?

6. ArkGoLucky

There is a 90 degree angle where the 75 and 50 meet

7. wio

|dw:1358142178357:dw|

8. wio

$\sqrt{70^2+50^2}\cos(\theta) = 75$

9. wio

Do you see how I got this little nugget?

10. wio

Actually, even better would be: $\tan(\theta) = \frac{50}{57}$

11. wio

Then there is $\tan(\theta + 10.5^\circ) = \frac{50+x}{75}$

12. wio

Okay all together, without errors $\begin{array}{rcl} \tan(\theta) &=& \frac{50}{75} \\ \tan(\theta + 10.5^\circ) &=& \frac{50+x}{75} \end{array}$

13. ArkGoLucky

nevermind I solved it. Thanks for trying

14. wio

What ever could have inspired you to solve it?

15. ArkGoLucky

theta. I forgot that you could find an angle with two side lengths