# A circle with center (0, 0) passes through the point (5, 12). How do you find the radius of the circle?

##### 1 Answer

#### Answer

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#### Explanation

#### Explanation:

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The radius is simply the distance from the center to the edge, and we can use Pythagoras' Theorem to calculate that for this circle the radius is

#### Explanation:

The radius is simply the distance from the center to the edge. We know the center is at

We can do this because

Taking the square root of both sides,

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