Area Problem #26 Posted on November 5, 2016 by solvemymaths Two unit squares. What’s the area of the shaded triangle? Advertisements Share this:TwitterFacebookLike this:Like Loading... Related

tan(22.5)/2 ?

or (root 2 – 1)/2 ?

Yup

How can you arrive at the (root2-1)/2 solution without calculating tan(22.5)?

Use similar triangles and Pythag