Sunday

March 29, 2015

March 29, 2015

Posted by **kayla** on Monday, May 23, 2011 at 2:35pm.

btw.. thx fer yall tht answer these, aprichiate it. yall are fricken wizards.

- Geometry -
**Reiny**, Monday, May 23, 2011 at 5:27pmA radius to a chord cuts the chord in half at a right angle.

So if the radius is r, I see that

r^2 = 12^2 + 16^2

r^2 = 400

r = √400 = 20

circumference = 2πr = 2π(20) = 40π

**Answer this Question**

**Related Questions**

math - the circumference of a circle is 120 millimeters. Which of the following ...

Circle geometry - Please help Explain how I figure this out. A circle has ...

Geometry - How would you solve these? The radius of a circle is 34 meters long, ...

geometry - suppose the diameter of a circle is 20in. long and a chord is 16in. ...

geometry - The radius of a circle is 34 meters long,and a chord of the circle is...

geometry - two concentric circles with center E, AB = 40 CD = 24, CD is ...

Geometry - A circle with center O has a radius of 17. Chord AB in the same ...

Math - The diameter of a circle is 130 cm, and a chord of the circle is 66 cm ...

Circle geometry - A chord is 6.0 cm from the centre of a circle of radius 10 cm...

GEOMETRY CIRCLE - 1.An isosceles triangle with each leg measuring 13 cm is ...