Question

NO LINKS!!! WILL REPORT!!!! NEED HELP ASAP

Answer 1

Explanation:

take 45 degree as reference angle

using cos rule

cos 45=adjacent/hypotenuse

1/
`√(2)`=x/4(do cross multiplication)

x
`\sqrt{2`=4

x=4/
`√(2)`

x=2
`√(2)`