Question

can someone make sure these answers are correct will give medal pic is attached

Answer 1

on no. 1 y is not 30....

Answer 2

for question no 1.
\[\cos \theta=\frac{ Base }{ Hypotenuse }\]
\[\cos 30=\frac{ y }{ 20 }\]
\[\frac{ \sqrt{3} }{ 2 }=\frac{ y }{ 20 }\]
\[y=10\sqrt{3}\]

Answer 3

for question 2:
\[\cos 60=\frac{ x }{ 30 }\]
\[\frac{ 1 }{ 2 }=\frac{ x }{ 30 }\]
x=15