Question

Need help!!!
What is the value of Y?

Answer 1

sin 45 = y /3 sqrt2

1 / sqrt2 = y / 3 sqrt2

y = 3 sqrt2* 1 / sqrt2 = 3

Value of y = 3

Answer 2

45 45 90 right triangle BCA
ratio of leg : leg : hypo = y : y: y√2
in this case hypo = 3√2 so leg = y = 3

answer
y = 3