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Right-angled Triangles, SM-Bank 017

Use Pythagoras' Theorem to decide if the numbers \(1.4, 4.8\) and \(5.2\) form a Pythagorean triad.  (2 marks)

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\(\text{See worked solution}\)

\(1.4,\ 4.8\ \text{and }5.2\ \text{do not form a Pythagorean triad.}\)

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\(\text{Let }a=1.4 ,\ b=4.8\ \text{and }c=5.2\)

\(\text{Pythagoras’ Theorem states:  }a^2+b^2=c^2\)

\(\text{LHS: }\rightarrow\ \) \(a^2+b^2\) \(=1.4^2+4.8^2\)
    \(=1.96+23.04\)
    \(=25\)
    \(=5^2\ne\text{RHS}\)

\(\therefore\ 1.4,\ 4.8\ \text{and }5.2\ \text{do not form a Pythagorean triad.}\)

Filed Under: Right-angled Triangles Tagged With: num-title-ct-core, smc-4218-20-Triads

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