Question

PLEASE HELP IT IS URGENT How do you find CF?

Answer 1

CF = 12

Explanation:

∠ CDF = ∠ ABD = 45° ( alternate angles )

Using the sine ratio in right triangle CDF and the exact value

sin45° =
`(1)/(√(2) )` , then

sin45° =
`(opposite)/(hypotenuse)` =
`(CF)/(CD)` =
`(CF)/(12√(2) )` =
`(1)/(√(2) )` ( cross- multiply )

`√(2)` CF = 12
`√(2)` ( divide both sides by
`√(2)` )

CF = 12