Determine whether △DEF ≅ △PQR given the coordinates of the vertices. Hint: Use the distance formula. D(–6, 1), E(1, 2), F(–1, –4), P(0, 5), Q(7, 6), R(5, 0).

a
Congruent
b
Not Congruent

Step-by-step explanation:

The standard form for a circle is

and what's important here is that the x- and the y- remain that way in the equation. Filling in our values,

which tells us that our center is

        6      and     -3 -------------------> (6, -3)

The radius is the square root of 25 which is 5.