in figure DE is parallel to BC and AD =½BD. if BC = 4.5 cm find d
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if you meant to find de ,. here's your answer.
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DE = 1.5 cm if DE is parallel to BC and AD =½BD. if BC = 4.5 cm
Step-by-step explanation:
DE ║ BC
=> ΔADE ≈ ΔABC
AD/AB = DE/BC = AE/AC
AD/AB = AD /(AD + BD)
AD = BD/2
=> BD = 2AD
= AD/(AD + 2AD)
= AD/3AD
= 1/3
=> DE/BC = 1/3
=> DE = BC/3
BC = 4.5
=> DE = 4.5/3
=> DE = 1.5 cm
DE = 1.5 cm
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