## 10 POINTS!! Made myself broke with my last two questions! The center of circle O is the origin. Circle O passes through the point (−5,

Question

10 POINTS!! Made myself broke with my last two questions!

The center of circle O is the origin. Circle O passes through the point (−5, −12). What is the length of the radius of circle O?

A. √ 17

B. 7

C. √ 119

D. 13

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Math
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2021-09-27T10:12:38+00:00
2021-09-27T10:12:38+00:00 1 Answer
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## Answers ( )

Answer:D

Step-by-step explanation:The radius r is the distance from the centre to a point on the circle.

Calculate r using the distance formula

r = √ (x₂ – x₁ )² + (y₂ – y₁ )²

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 5, – 12)

r =

=

=

=

= 13 → D