Question

Can someone help? ASAP

Answer 1

`\tan 45^(\circ)=(x)/(2√(10))\\\\1=(x)/(2√(10))\\\\\boxed{x=2√(10)}\\\\\\\\\sin 45^(\circ)=(2√(10))/(y)\\\\(1)/(√(2))=(2√(10))/(y)\\\\y=2\sqrt[20}\\\\\boxed{y=4√(5)}`