# Chord - TS v2

The radius of circle k measures 87 cm. Chord GH = 22 cm. What is TS?

Correct result:

|TS| =  0.7 cm

#### Solution:

$\ \\ |TS| = r - \sqrt{ r^2 - (t/2)^2} \ \\ |TS| = 87 - \sqrt{ 87^2 - (22/2)^2 } \ \\ |TS| = 0.7 \ \text{cm}$

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