The circle below is centered at the point (3, 1) and has a radius of length 2.
what is its equation?

Step-by-step explanation:

The equation of a circle with center and radius is given by

Here the center is: and radius is .

Therefore, we have:

Step-by-step explanation:

an equation of the circle Center at the w(a,b) and ridus : r is :

(x-a)² +(y-b)² = r²

in this exercice : r = 2 and  a =3   b =1

so : (x-3)² +(y-1)² = 2²

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: