SOLUTION: A square steel bar is equal in area to a 5" diameter steel rod. Determine side of the square. Not sure how to proceed. Non-homework. Thanks.

Click here to see ALL problems on Miscellaneous Word Problems

Question 1085130: A square steel bar is equal in area to a 5" diameter steel rod. Determine side of the square.
Not sure how to proceed. Non-homework. Thanks.
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website!
A square steel bar is equal in area to a 5" diameter steel rod. Determine side of the square.
---------
Area of the rod = pi*r^2 = 6.25*pi sq inches
-----------
Area of the bar = s^2 (s = side length)
s^2 = 6.25pi
s = 2.5*sqrt(pi)
s =~ 4.4311 inches

Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
I read this as " the cross section area of a
square rod equals the cross section area of a round rod"
Let = a side of the square cross section
The cross section area of the round rod is:

in

Now I can say:
[ area of square ] = [ area of circle ]

in