CONVERT DIAMETER TO SQUARE INCHES

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CONVERT DIAMETER TO SQUARE INCHES

Postby KURT » Wed Oct 03, 2007 7:44 pm

I NEED TO CONVERT 3-3/4 inch dia. TO SQUARE INCHES
KURT
 

Postby Dirtman » Wed Oct 03, 2007 9:18 pm

3.75 squared * PI / 4
Dirtman
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Posts: 574
Joined: Sat Jan 21, 2006 2:04 pm
Location: California

Re: CONVERT DIAMETER TO SQUARE INCHES

Postby dvangossen » Thu Aug 12, 2010 12:53 am

convert 8 inch diameter into square inches
convert 6 inch diameter into square inches
dvangossen
 

Re: CONVERT DIAMETER TO SQUARE INCHES

Postby Dirtman » Thu Aug 12, 2010 3:46 am

dvangossen wrote:convert 8 inch diameter into square inches
convert 6 inch diameter into square inches


Here are the formulas for determining the area of a circle when you have either the radius or the diameter:

PI * Radius^2
or
PI/4 * Diameter^2

I'll do the first circle. The diameter given is 8", so:

(3.1416/4) * 8 * 8 = 0.7854 * 64 = 50.27 square inches
Dirtman
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Posts: 574
Joined: Sat Jan 21, 2006 2:04 pm
Location: California

Re: CONVERT DIAMETER TO SQUARE INCHES

Postby amandak695 » Mon Aug 30, 2010 10:15 am

Dirtman wrote:
dvangossen wrote:convert 8 inch diameter into square inches
convert 6 inch diameter into square inches


Here are the formulas for determining the area of a circle when you have either the radius or the diameter:

PI * Radius^2
or
PI/4 * Diameter^2

I'll do the first circle. The diameter given is 8", so:

(3.1416/4) * 8 * 8 = 0.7854 * 64 = 50.27 square inches

Thanks you for the post.
amandak695
 
Posts: 1
Joined: Mon Aug 30, 2010 10:13 am


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