Area, SM-Bank 118 Calculate the area of a circle with a diameter of 37.4 millimetres. Give your answer correct to one decimal place. (2 marks) --- 4 WORK AREA LINES (style=lined) --- Show Answers Only \(1098.6\ \text{mm}^2\ (1 \text{ d.p.})\) Show Worked Solution \(\text{Diameter}=37.4\ \text{mm}\) \(\therefore\ \text{Radius}=18.7\ \text{mm}\) \(\text{Area}\) \(=\pi r^2\) \(=\pi\times 18.7^2\) \(=1098.583\dots\) \(=1098.6\ \text{mm}^2\ (\text{1 d.p.})\)