Verified Answer :

annabellthegrea


You know that all four sided polygons have a total angle measure of 360.

add all the sides you have:

65 + 90 + 15 = 170

Subtract 170 from total(360)

360 - 170 = 190

Missing angle: 190

dCODEr

\(360=65+90+15+x\)
\(360=170+x\)
     -170    -170
\(190=x\)
\(mCA=190 degrees\)

I cant give side lengths until I know a couple, and then that would require some triginometry, which I don't feel like doing right now, to be frank.