Use a formula to solve each problem. (Use 3.14 as an approximation for .) Formulas are
Chapter 2, Problem 47(choose chapter or problem)
Use a formula to solve each problem. (Use 3.14 as an approximation for .) Formulas are found on the inside covers of this book. See Examples 24.A prehistoric ceremonial site dating toabout 3000 B.C. was discovered in southwesternEngland. The site is a nearly perfectcircle, consisting of nine concentricrings that probably held upright woodenposts. Around this timber temple is awide, encircling ditch enclosing an areawith a diameter of 443 ft. Find this enclosedarea to the nearest thousand squarefeet. (Hint: Find the radius. Then use.) (Source: Archaeology, vol. 51,no. 1, Jan./Feb. 1998.)
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