Friday

April 18, 2014

April 18, 2014

Posted by **Tyler** on Sunday, December 5, 2010 at 10:49pm.

- Algebra -
**drwls**, Monday, December 6, 2010 at 3:19amThe radii of the circles are 5, 10, 4 and 15.

If they can be arranged to be mutually tangent, the quadrilateral ABCD connects the centers of the circles, and has perimeter = 2(4 + 5 + 10 + 15) = 68

- Algebra -
**grre**, Tuesday, December 14, 2010 at 4:32pmrgr

**Related Questions**

Geometry/Trigonometry - Circles with centers (2,1) and (8,9) have radii 1 and 9...

Trig - Three circles with radii of 4, 5, and 6 cm, respectively, are tangent to ...

trigonometry - three circles of radie 3,4, and 5 units respectively are tangent ...

Math - circles P and Q are externally tangent at T. Horizontal lines l and m are...

MATH - Three circles, each with a radius of 10, are mutually tangent to each ...

maths - Three circles, each with a radius of 10, are mutually tangent to each ...

maths - Three circles, each with a radius of 10, are mutually tangent to each ...

geometry - Three circles, each with a radius of 10, are mutually tangent to each...

Math. I really don't get this question - three circles are manually tangent ...

GEOMETRY(CIRCLE) - Three circles with different radii have their centers on a ...