Question

19. (a) If (a + 3b):(5a - 2b) =(4a+b):(8a - 4b), where a 0,5*0 then find b:a.Give me only right answer. ​

Answer 1

Answer:

36 cm^2

Step-by-step explanation:

ar(ABC)/ar(ADE) = (BC/DE)^2

81/ar(ADE) = (3/2)^2 [DE=2/3 BC]

ar(ADE)=9*4

=36

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