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Free ACT Practice Question

Question 1 of 1
ID: ACT-M-163
Section: Math
Topics: Geometry; Coordinate geometry
Difficulty level: Hard

Practice Mode: Single selected Question » Back to Overview

What is the equation of the circle inscribed in a square with one of its diagonals having the coordinates $(3, 1)$ and $(11, 7)$?

A$(x + 7)^2 + (y - 4)^2 = 10$

B$(x + 7)^2 + (y + 4)^2 = 25$

C$2(x - 7)^2 + 2(y - 4)^2 = 50$

D$2(x - 7)^2 + 2(y - 4)^2 = 25$