# Math Help - Perimeter Question

1. ## Perimeter Question

This is a question by PapaSmurf:
3)

You have a 12 feet wire and you are going to cut it to form a circle and a square.
a) Write the equation of the length of the length of the wire in terms of the radius of a circle and the side of the square.

b) Write the equation of the combined enclosed area of the circle and the square in terms of the radius.

2. (a) $2\pi r +4x=12$

(b) $A =\pi r^2 + x^2 = \pi r^2 + (\frac{12-2\pi r}{4})^2$

Here r is the radius of the circle, and x is the length of a side of the square.