Help Evaluate please!

Write the equation of the circle centered at (10,-2) with radius 2.

Flvs question 3 exam: 04.10 segment one exam part two what is the measure of angle x? picture is shown

The perimeter of △cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.