Thursday

August 28, 2014

August 28, 2014

Posted by **syram** on Thursday, March 7, 2013 at 6:11pm.

- math -
**PsyDAG**, Friday, March 8, 2013 at 1:24pmIt would help if you proofread your questions before you posted them.

I assume that all of your "placements" are really placemats.

Area = π * r^2

d = 2r

Area of coaster = π * 3.5^2

Area of placemat = π * 7^2

Subtract area of coaster from area of placemat.

**Related Questions**

algebra - A circular coaster, with a diameter of 7 inches, is positioned on a ...

Math - Juan says the diameter of circle with a radius of 8 inches is 4 inches. ...

Physics - you measure the diameter of a circle then you calculate the radius of ...

math - A diameter of a circle is perpendicular to a chord whose length is 12 ...

geometry - A diameter of a circle is perpendicular to a chord whose length is 12...

geometry - A diameter of a circle is perpendicular to a chord whose length is 12...

geometry - A diameter of a circle is perpendicular to a chord whose length is 12...

statistics - Reading placement scores for a particular college are normally ...

4gr math - if the diameter of a circle is one foot, then the radius of the ...

math - if a cylinder with a height equal to its diameter has a volume of 20 ...