Posted by Anna-Marie on Tuesday, January 29, 2008 at 6:18pm.
let the other side be x
You don't say if 12SQRT(3) is a side in the smaller polygo, I will assume it is
then x/12SQRT(3) = 5/3
cross-multiply, and solve for x
If your given side is in the large polygon, then use
x/12SQRT(3) = 3/5
it the smaller side.. bt i don't know how to do the sq root
x/12SQRT(3) = 5/3
3x = 60SQR(3)
x = 20SQR(3)
SQRT(3) = appr 1.7321 (use your calculator to find it)
so
x = 20(1.7321)
= 34.642 (appr)
In higher math classes you would leave the answer in the form of 20SQRT(3)
notice the ratio of 12SQRT(3)/20SQRT(3)
=12/20
= 3/5 or 3:5
it the smaller side.. bt i don't know how to do the sq root
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