# Chord 5

It is given circle k / S; 5 cm /. Its chord MN is 3 cm away from the center of the circle . Calculate its length.

Result

t =  8 cm

#### Solution:

$r^2 = 3^2 + (t/2)^2 \ \\ t = 2 \sqrt{ 5^2-3^2} = 8 \ \text{cm}$

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