in the given figure, be II ab. if ae = 3cm, bd = 12cm, find x:y
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Answered by
1
Answer:
Given:
DE∥BG,AD=3cm,BD=4cm and BC=5cm
(i) AE:EC
So, AD/BD=AE/EC ∵DE∥BC
AE/EC=AD/BD
AE/EC=
4
3
AE:EC=3:4
(ii) consider △ADE and △ABC
∠D=∠B
∠E=∠C
∠A=∠A ∵DE∥BC
Therefore, △ADE∼△ABC
Then, DE/BC=AD/AB
DE/5=3/(3+4)
DE/5=3/7
DE=(3×5)/7
DE=15/7
DE=2
7
1
cm.
Answered by
1
Given:
BE || AB
AD = 3cm
BD = 12 cm
To find:
AE: EC
Solution:
AD/BD = AE/EC (Since, DE∥BC)
AE/EC=AD/BD
AE/EC= 4/ 3
AE: EC = 3:4
Hence, AE: EC is 3:4
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