Question

I'm confused? Please help. >.<

Answer 1

Okay.

This is trigonometry, and you have an angle of 65 degrees. So we'll use that angle.

We want to find length e... and we can use any of the lengths since we're given them all.

So, let's check all the options. Is it a? fCos65, well that would imply that f is the hypotenuse, so it's not that.

b) d/Cos65 = That would imply that d is adjacent to 65, which it is. So this works.

c) fSin65 = This still implies that f is the hypotenuse, which it isn't.

d) d/Sin65 = This implies that d is adjacent, which it isn't.

So it's b. The only one that works.

Answer 2

Okay. I think I understand. But I'm still a little confused, so I suppose I'll ask my teacher for help on this topic so that I have a better understanding. ^^ Thank you so much!!! :D

Answer 3

It's alright. If you have another question just post it. I'm sure there will be people happy to help.