Answer:
x=2
Step-by-step explanation:
Since this is a right triangle, we can use trig functions
sin theta = opp/ hyp
sin 30 = x/4
4 sin 30 =x
4 ( 1/2) =x
2 =x
100/30=3.3*
9x3.3*=30
T=30 metres
The smaller rectangle is like a smaller version of the big one, and 8 divided by 2 is four... so I think you need to divide 18 by 4, which is 4.5, so C is the answer