SAT Math Practice Question #33582 - SATify | SATify

Home Practice Exams Features Pricing Quick Start Guide About

Loading...

SAT Math Practice Question #33582 - SATify | SATify

#33582

circles

coordinate geometry

geometry

medium

45 sec

What is the diameter of the circle in the $x y$ -plane with equation $(x - 1)^{2} + (y + 4)^{2} = 81$ ?

A.

9

B.

18

C.

27

D.

81