Thursday

October 23, 2014

October 23, 2014

Posted by **Dixie** on Sunday, January 25, 2009 at 5:50pm.

Part A)How far is the chord from the center?

Part B)Find the measure of the arc created by the chord.

- Math -
**drwls**, Sunday, January 25, 2009 at 6:27pmA) Let x be the distance of the chord from the center. Draw a line from the center of the chord to the center of the circle. This forms a right triangle with a radius and half the chord.

x^2 + 60^2 = r^2 = 4624

x^2 = 1024

x = 32

B) The angle subtended by the chord is 2 arcsin 60/68 = 123.85 degrees = 2.162 radians

Multiply that by the radius to get the arc length, 147.0 units.. a bit longer than the chord length, as you would expect.

- Math -
**your mom**, Sunday, December 4, 2011 at 2:48pmyour mom

**Answer this Question**

**Related Questions**

Math - In a circle , the radius is 68 units and a chord of the circle is 120 ...

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 CIRCLES - 1. Ab is a chord of a circle with center o and radius 52 cm...

Geometry about the circles - 1. Ab is a chord of a circle with center o and ...

Geometry about the circles - 1. Ab is a chord of a circle with center o and ...

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

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

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

GEOMETRY CIRCLES PLEASE - 1.An isosceles triangle with each leg measuring 13 cm ...