If and is not similar to

MATHEMATICS · Single correct · CBSE · Mathematics · Triangles · Triangles

Problem

If △ABC∼△EDF\triangle ABC \sim \triangle EDF and △ABC\triangle ABC is not similar to △DEF\triangle DEF, then which of the following is not true? (a) BC⋅EF=AC⋅FDBC \cdot EF = AC \cdot FD (b) AB⋅EF=AC⋅DEAB \cdot EF = AC \cdot DE (c) BC⋅DE=AB⋅EFBC \cdot DE = AB \cdot EF (d) BC⋅DE=AB⋅FDBC \cdot DE = AB \cdot FD

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