Question

A circle in the xy‑plane has the equation (x+92)^2+(y+54)^2=73. What is the length of the diameter of the circle?

Answer 1

given equation :(x+92)²+(y+54)²=73
 
Formula of circle (x-h)² +(x-k)² = r²
Comparing the given equation with formula of circle
 we get,
 
Radius r = √73
 we know diameter =2 radius
 so, diameter =2√73.

Answer 2

Radius r = √73

we know diameter =2 radius

so, diameter =2√73.