Find the circumcenter of the triangle?

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

3c2 + 2d)(–5c2 + d) select all of the partial products for the multiplication problem above.

Find the measure of angle a in the following triangle