Question

PLEASE HELP ME

Answer 1

You, need to use basic trigonometry involving sin, cos , tan..

Answer 2

i dont know how

Answer 3

Okay, I will help you with the first one.
We know a angle 60, we need the adjacent side and we also know the hypotenuse.
So, the trig fn which can be used is cos.
Since, \[\cos \theta =\frac{ adjacent }{ hypotenuse }\]

Answer 4

soo...

Answer 5

Hence you get \[\cos 60 = \frac{ a }{ 8}\]

Answer 6

confused... sorry

Answer 7

First you need to know the definitions of trigonometric functions.. Understand the terms adjacent,opposite,hypotenuse properly and solve these.

Answer 8

o.o