# CONVERT DIAMETER TO SQUARE INCHES

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### CONVERT DIAMETER TO SQUARE INCHES

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

3.75 squared * PI / 4
Dirtman
Expert

Posts: 574
Joined: Sat Jan 21, 2006 2:04 pm
Location: California

### Re: CONVERT DIAMETER TO SQUARE INCHES

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

### Re: CONVERT DIAMETER TO SQUARE INCHES

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:

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
Expert

Posts: 574
Joined: Sat Jan 21, 2006 2:04 pm
Location: California

### Re: CONVERT DIAMETER TO SQUARE INCHES

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:

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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