Ardon Low's answer to Yas Tudor's Secondary 1 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Ardon Low
Ardon Low's answer
4 answers (A Helpful Person)
The side y is opposite the angle of 57 degrees. The side 15 is the hypotenuse. Thus we use the sine ratio which is opposite/hypotenuse.