Chapter 3 - Equations and Problem Solving - 3.3 - More on Solving Equations and Problem Solving - Problem Set 3.3 - Page 115: 45

The area is 0.25$\pi$ yard ssquared.

The formula for the area of a circle is $\pi$ $\times$ $r^{2}$ The diameter is twice the radius. So: d = 2r 1 = 2r r = 0.5 Substitute 0.5 for r to obtain: A = $\pi$ $\times$ $0.5^{2}$ A = $\pi$ $\times$ 0.25 A = 0.25$\pi$