Write the expression in rectangular form, x + yi, and in exponential form, re 7π 14 i- √3e 24 The rectangular form of the given expression is, and the exponential form of the given expression is (Simplify your answers. Type exact answers, using as needed. Use integers or fractions for any numbers in the expressions.)

Leonardo da Vinci's drawing relating a human figure to a square and a circle is shown. (a) Find an expression that represents the area of the square if the man's height is 4x feet. ft2 (b) Find an expression that represents the area of the circle if the distance from his waist to his feet is 8x feet. Leave in your answer. Hint: The formula for the area of a circle is A = tr?. ft2