SmarterEd

Aussie Maths & Science Teachers: Save your time with SmarterEd

Area, SM-Bank 153

A circular cricket ground has an area of 11 028 square metres.

Determine the radius of the cricket ground, in metres, giving your answer to 1 decimal place.   (2 marks)

Show Answers Only

\(59.2\ \text{m}\)

Show Worked Solution
\(A\) \(=\pi r^{2} \)
\(11\ 028\) \(= \pi r^2\)
\(r^{2}\) \(=\dfrac{11\ 028}{\pi}\)
\(r\) \(=\sqrt{3510.321…}\)
  \(=59.247…\)
  \(=59.2\ \text{m (1 d.p.)}\)