ABC is a triangle with DE parallel to BC. if AD =2cm, BD=4cm then find the value of DE: BC.
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hope this will help you
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Answered by
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Answer: 1:3
Step-by-step explanation:
Triangle ADE is similar to triangle ABC ( by aa similarity criteria ) ( DE is parallel to BC )
AD/AB = DE/BC (cpst)
2/6 = DE/BC ( AB = AD+BD = 2 + 4 = 6 )
1/3 = DE/BC
therefore , DE:BC = 1:3
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