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2.2 .1 Calculate the radius of the centre circle (round off to 2 decimal places)
2.2 .2 Calculate the circumference of the centre circle
2.2 .3 Calculate the length of lines to be painted if all the lines need to be painted

Ask by Pope Perkins. in South Africa
Mar 13,2025

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  • 2.2.1 The radius of the centre circle is 9.15 meters.
  • 2.2.2 The circumference of the centre circle is 57.46 meters.
  • 2.2.3 The total length of lines to be painted is 508.46 meters.

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To find the radius of the center circle, you can start by using the formula for the area of a circle, A = πr². Once you have the area, you can rearrange the formula to solve for the radius, r = √(A/π). Just remember to check if the area is provided to proceed with your calculation!
For the circumference, the formula is C = 2πr. Once you’ve determined the radius from the previous step, plug it into this equation. Concerning the length of lines to be painted, sum the circumferences of all the circles and the lengths of any straight lines involved. Don’t forget to treat all geometrical components like arcs and chords to ensure you get the complete measurement!

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