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converting to acreage

PostPosted: Wed Sep 20, 2006 8:25 am
by ted t
I have a pierce of land that that is shaped as a obtruce triangle and need to know the acreage but have forgot how to calculate. "It is heck to get old" the sides are 586' by 581' by 310'. Can anyone help me?

Re: converting to acreage

PostPosted: Wed Sep 20, 2006 9:18 am
by Guest
ted t wrote:I have a pierce of land that that is shaped as a obtruce triangle and need to know the acreage but have forgot how to calculate. "It is heck to get old" the sides are 586' by 581' by 310'. Can anyone help me?


It's called Heron's formula. If the the three sides of a triangle are a, b, c, then

s = 0.5*(a + b + c)
K (the area) = SQRT(s*(s-a)*(s-b)*(s-c))
1 acre = 43560 sq ft