Posted by **Anonymous** on Sunday, April 11, 2010 at 9:21pm.

A chord is 6.0 cm from the centre of a circle of radius 10 cm. How long is the chord to the nearest tent of a centimeter???

- Circle geometry -
**Reiny**, Sunday, April 11, 2010 at 9:29pm
Did you make a diagram?

draw a line from the centre to the end of the chord.

Looks like we have a right angled triangle with hypotenuse 10, one side 6, the other x, where x is 1/2 the chord

x^2 + 36 = 100

x = 8

sos the chord is 16

- Circle geometry -
**Anonymous**, Sunday, April 11, 2010 at 9:34pm
Still don't get it.

- Circle geometry -
**Reiny**, Sunday, April 11, 2010 at 11:12pm
What grade is this?

Do you know Pythagoras?

- Circle geometry -
**Anonymous**, Monday, April 12, 2010 at 3:12am
Grade 9 and yes i do

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