Chapter 11, Problem 21CPS

C. Practical Applications.

For each of the following, set up either a system of equations in two variables or a quadratic equation and solve. (Round to two decimal places if necessary.)

Construction An historic home in the Ojai Valley of Southern California is in the shape of an equilateral triangle. If the home contains 4366 square feet, what is the length of each of the three sides of the home? (Hint: The area A of an equilateral triangle is given by A ≈ 0.433a², where a = side length.) Give the answer in feet and inches, rounded to the nearest inch.