lou3173 lou3173

01-05-2020
Mathematics

contestada

A circle has its center at the origin, and (5.-12) is a point on the circle. How long is the radius of the circle?
12
5
13

Respuesta :

lucasella lucasella

01-05-2020

A(5;-12); O(0;0)

r=OA=√(5²+12²)=√169=13

r=13

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