Question

then let us B D () In the adjoining figure if DE || BC and AD: BD=3:5, then let us write E area of AADE: area of ACDE. С С ​

Answer 1

Answer:

do by Pythagorean formulae

Step-by-step explanation:

aa bb cc ab bc ca etc

Answer 2

Answer:

64:9

Step-by-step explanation:

AD:BD = 3:5

AD/BD = 3/5

BD/AD = 5/3 [Just reciprocated]

BD/AD + 1 = 5/3 + 1 [Add 1 on both sides]

BD+AD/AD = 5+3/3

AB/AD = 8/3

→ AB:AD = 8:3

Ratio of Areas-

ar (∆ABC/∆ADE) = (AB/AD)²

→ ratio = 64:9