Wednesday

April 23, 2014

April 23, 2014

Posted by **Jenny** on Thursday, September 10, 2009 at 10:12pm.

would this be 3.14*2*4.2ft?

- Geometry -
**Quidditch**, Thursday, September 10, 2009 at 10:21pmThis is a little tricky.

Let R = the radius

Let Pi = 3.14 as stated.

The circumference is (Pi)(2)(R)

The problem already calculates (2)(R) for you as 4.2 ft.

So,

circumference = (Pi)(4.2)

or

=(3.14)(4.2) ft.

Multiply and round as requested by the problem.

- Geometry -
**Jenny**, Thursday, September 10, 2009 at 10:22pmNo wonder I kept getting a weird answer thank you for clarifying for me...

- Geometry -
**Quidditch**, Thursday, September 10, 2009 at 10:24pmYour welcome!

Glad to help.

- Geometry -
**Jenny**, Thursday, September 10, 2009 at 10:24pm(3.14)(4.2)=13.188

would I round that to 13.19?

- Geometry -
**Quidditch**, Thursday, September 10, 2009 at 10:27pmNo, the problem requests to the nearest tenth which would be:

13.2 ft.

Also, don't forget the units.

- Geometry -
**Jenny**, Thursday, September 10, 2009 at 10:29pmok thank you u r a lifesaver

**Related Questions**

Geometry - Find the circumference of a circle whose diameter is 2xR=4.2 ft. Use...

math - Find the area for the circle (use 3.14 for pi). Show your work. Round to ...

math - . Find the volume of the sphere with a radius of 9. Use ð = 3.14 and ...

Math - Find the area for the circle (use 3.14 for pi). Show your work. Round to ...

math - 1. Find the area of a circle whose diameter is 5.1 centimeters (cm). Use ...

college algebra - The diameter of the Earth is approximately 7,920 miles. Given ...

Geometry - 1. Find the diameter of a circle with a circumference of 50 mm. Round...

math - how do you find the diameter of a circle if you don't have the radius? ...

Math for Ms. Sue please! Last math questions! - For numbers 1–3, find the ...

geometry - A circle has a radius of 3 feet and a central angle DEF that measures...