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teachoo.com
Theorem 6.1 - Basic Proportionality Theorem (BPT) - Chapter 6 Class 10
Theorem 6.1: If a line is drawn parallel to one side of a triangle to intersect the other two side in distinct points, the other two sides are divided in the same ratio. Given: Δ ABC where DE ∥ BCTo Prove: 𝐴𝐷/𝐷𝐵 = 𝐴𝐸/𝐸𝐶Construction: Join BE and CD Draw DM ⊥ AC and EN ⊥ AB.Proof:
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