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What is the radius of the circle whose center is the origin and that passes through the point (-5,- 12)?

Sagot :

Answer:

13

Step-by-step explanation:

c^2 = a^2 + b^2

c^2 = (-5)^2 + (-12)^2

c^2 = 25 + 144

c^2 = 169

c = 13