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2 marksPerimeter of Plane Shapes

CSEC Mathematics · May/June 2012 · Paper 2 · Question 4(a)(ii)

The diagram shows the cross section of a prism in the shape of a sector of a circle, centre O, and radius 3.5 cm. The angle at the centre is 270°. Use π = 22/7.

Calculate the perimeter of the sector OABC.

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Other parts of this question

  1. 4(a)(i)Calculate the length of the arc ABC.[2 marks]
  2. 4(a)(iii)Calculate the area of the sector OABC.[2 marks]
  3. 4(b)(i)Calculate the volume of the prism.[2 marks]
  4. 4(b)(ii)Calculate the mass of the prism, to the nearest kg, given that 1 cm³ of tin has a mass of 7.3 kg.[2 marks]

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