math4th grade
posted by alysha .
a worker is usin boards to divide a rectangular animal pen into a row of 12 smaller goat pens. uhow many boards does the worker need?

math4th grade 
Ms. Sue
Draw a picture of it. How many boards does the worker need?

math4th grade 
drwls
It depends upon the width of the boards used. Let's assume they are as wide as the pen height needs to be (which is unlikely).
To divide the rectangle into a 4 x 3 array or 12 equal areas, five boards are needed. They will have to be notched where they intersect. 
math4th grade 
timera
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