Question

y=

4.6
13.9
21.6


https://media.glynlyon.com/g_geo_2012/5/group135.gif

Answer 1

HERE,
cos 60=adjacent side/hypotenuse
1/2=8/H
so H,Hypotenuse=16

Answer 2

Here x=16
sin 60=y/x
\[\sqrt{3}/2=x/16\]

Answer 3

So....Multypying by 2 on both sides and cross multipying we get
\[8\sqrt{3}=y\]

Answer 4

y=13.8564064606=13.9(approx.)