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Mathematics 17 Online
airamchavez:

The distance between a chord and the center of a circle is 4 cm. What is the radius of the circle if the chord measures 16 cm?

Florisalreadytaken:

Ok, so we’re given a 16cm chord 4cm away from the centre of the circle — based off that, we can create this image

Florisalreadytaken:

The chord is divided into 2 exact same parts

Florisalreadytaken:

What does that tell us? @airamchavez

Florisalreadytaken:

We get this:

Florisalreadytaken:

all we got to do is use the pythagorean theorem.

Florisalreadytaken:

:D

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