The figure below shows square abcd inscribed on square pqrm on a coordinate plane. which of the following expressions represents the perimeter of triangle brc in units? a.4 b.6 c.2√5 d.6 + 2√5

The hypotenuse of the triangle is given by:
 
 Substituting values:
 
 Clearing CB we have:
 
 Then, the perimeter of the triangle is:
 
 Substituting values:
 
 
 the perimeter of triangle BRC in units is:
 D.6 + 2√5

Where are the following equations?

X^2 - 4x +(4/2^2) + y^2 + 8y + (8/2^2) = -4 + (4/2^2) + (8/2^2)(x + 2)^2 + (y + 4)^2 = -4 + 4 + 16your center is (-2, -4) and the radius is the sqrt of -4 + 4 + 16 which is 4