lilangel307521 lilangel307521 21-02-2021 Mathematics contestada The standard form of an equation of a circle with center at (h, k) and radius r is _____. (y − h)2 + (x − k)2 = r2 (x − h)2 − (y − k)2 = r2 (y + h)2 − (x + k)2 = r2 (x − h)2 + (y − k)2 = r2 (x + h)2 − (y + k)2 = r2