Question

In △DEF, solve for x. Round the solution to the nearest hundredth.

Answer 1

http://go.flvs.net/courses/1/flvs_57_3641_12493/ppg/respondus/pool_Geom_3641_0402_02/imageq2.gif

Answer 2

please help, what do I do?

Answer 3

Use your trig. \[\cos49^{o}=x/55\rightarrow x=55\cos49^{o}\]

Answer 4

55cos* 49?

Answer 5

Yeah. Your calculator should be able to give you a number for that value, then multiply by 55.

Answer 6

If you can't figure these problems out, watch
http://www.khanacademy.org/math/trigonometry/v/basic-trigonometry
and the one after it.

Answer 7

thanks guys. I appreciate it.