যদি এডাল ৰেখাই ∆ABC ৰ AB আৰু AC বাহুক ক্ৰমে D আৰু E বিন্দুত ছেদ কৰে আৰু ৰেখাডাল BC ৰ সমান্তৰাল, তেন্তে প্ৰমাণ কৰা যে AD/AB qual AE/AC
Q. If the edal line intersects the AB and AC arms of ∆ABC at points D and E respectively and is parallel to the line segment BC, then
prove that AD/AB equal AE/AC
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If a line intersects sides AB and AC of a triangle ABC at D and E respectively and is parallel to BC, prove that AD/AB=AE/AC.
DE ║ BC
in ΔABC & ΔADE
∠A = ∠A Common Angle
∠ADE = ∠ABC as BC ║ DE
∠AED = ∠ACB as BC ║ DE
All three angles are equal
so
ΔABC ≅ ΔADE
in similar triangles
AD/AB =AE/AC = DE/BC
=> AD/AB =AE/AC
QED
Answered by
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যদি এডাল ৰেখাই ∆ABC ৰ AB আৰু AC বাহুক ক্ৰমে D আৰু E বিন্দুত ছেদ কৰে আৰু ৰেখাডাল BC ৰ সমান্তৰাল, তেন্তে প্ৰমাণ কৰা যে AD/AB qual AE/AC
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