Respuesta :

Abinatamang

Step-by-step explanation:

In ∆ABC, if <A is 90° and <B is 45° then hypotenuse is BC.

Now,

Cos B= base/height

Cos B= AB/ BC

BC= AB/cos 45°.

Deveren4

Answer:

17 sqrt 2

Step-by-step explanation:

trust me the length is 24.04163 which equals 17√2

www.calculator.net has a triangle calculator if u think im wrong just look up triangle calculator