The length of a rectangle is thrice as long as its width. Its perimeter is 16p cm. a) Find the length of the rectangle in terms of p.b) Find the area of the rectangle if p = 4.SolutionPerimeter --> 3 units + 1 unit + 3 units + 1 unit = 8 units8 units --> 16p cm1 unit --> 16p cm divided 8 = 2p cma) Length3 units --> 3 x 2p cm = 6p cmAnswer: 6p cmAnswer: 192 square cm
Tuesday, February 09, 2010
Ai Tong Sch 2009 P6 CA1 Math Paper 2 Q13
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