SAT Math Practice Question #30080 - SATify | SATify
#30080
formulas
distance
equations
circles
coordinate geometry
geometry
medium
90 sec
A circle in the xy-plane has a diameter with endpoints (−3,1) and (5,7). An equation of this circle is (x−h)2+(y−k)2=r2, where r is a positive constant. What is the value of r?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
