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?

2 answers:

7 0

Hello here is a solution :
 the radius of the circle is OA A(5;-12) and O (0;0)
OA= square root ((5-0)² + (-12-0)²)
 = square root (25+144)
 = square root(169)
 OA = 13

Alinara [238K]3 years ago

4 0

13, because I said so.

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