Respuesta :

step 1

solve for y

Remember that

sin(30)=1/2

and

sin(30)=y/4

so

1/2=y/4

solve for y

y=(1/2)*4

y=2

step 2

Solve for x

Applying the Pythagorean Theorem

4^2=x^2+y^2

4^2=x^2+2^2

x^2=4^2-2^2

x^2=16-4

x^2=12

x=2√3

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