Common Core maths standard · High School Geometry

HSG-C.A.1

Derive and use the equation of a circle from its center and radius, completing the square when needed. One game practises it.

High School · Geometry

Transformations · Congruence & similarity · Right-triangle trig · Circles

1 think & learn

Think & learn HSG-GPE.A.1 · HSG-C.A.1

(x − h)² + (y − k)² = r². Read circles, write their equations, and complete the square.