Easy -2.0 This is a direct recall question requiring only recognition that a circle equation in the form (x-a)²+(y-b)²=r² has radius r=√16=4. No algebraic manipulation, problem-solving, or multi-step reasoning is needed—just immediate identification from standard form.
3 A circle has equation
$$( x - 5 ) ^ { 2 } + ( y - 13 ) ^ { 2 } = 16$$
Find the radius of the circle.
Circle your answer.
41216256
\hfill \mbox{\textit{AQA Paper 2 2023 Q3 [1]}}