Answer:

Step-by-step explanation:
We want to rewrite

in the form

We expand to get:

Regroup similar terms:

Simplify:

This is now of the form

where a=23.75 and b=76.24
Square D because 2/8 are not shaded. 2/8=1/4 and 1/4=25%
By similar triangles ( triangles AFE and ADB are similar)
BD = 1/2 * FE so BD = 11.75 answer