Answer: sin should be 10.8/ 13.7
Explanation:
refer to sohcahtoa
this is because sin is opposite (10.8) over hypotenuse (13.7)
S Sin
O opposite
H Hypotenuse
10.8 is opposite of the θ, 1.8 is not next to the θ, 8.4 is, so it is the opposite.
The hypotenuse is always the slanted line.