The equation for the
perimeter of the square is P=4s where s is the side. The side of the square is
equal to twice the radius, 2r. So, we have P=4(2r) or P=8r. Taking the
derivative, we have
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Filling in from question 1, we have
Click cir.squ and use the sketch to check your answer. Don't forget to click
"show" in the sketch. Find the right formula(s). Explain those formulas.
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