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Algebraic Techniques, SM-Bank 074

The side length of an equilateral triangle is \(x+2\). Write an expression for the perimeter of the triangle.  (2 marks)

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\(3\times(x+2)\ \ \text{or }\ 3(x+2)\ \ \text{or }\ 3x+6\)

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\(\text{An equilateral triangle has all sides equal}\)

\(\therefore\ \text{Perimeter}\) \(=3\times\text{side length}\)
  \(=3\times(x+2)\)
  \(=3\times x+3\times 2\)
  \(=3x+6\)

Filed Under: Simplifying Algebraic Expressions Tagged With: num-title-ct-core, smc-4694-30-Simplify

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