answer for 6th question??
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3 consecutive terms of what
Plz take photo clearly
Plz take photo clearly
ayushmodi044:
Sorry man I
Plz delete my answer
6th one dude...
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3DE = 2BC
So, DE/BC = 2/3 .........................................(1)
DE║BC So, Alternate Int. ∠s are Equal.
So, Triangle triangle ABC is Similar to trian. ADE
So, Ar(ABC)/Ar(ADE) = (BC/DE)²
so, 81/Ar(ADE) = (3/2)² [By Eqn(1)]
Ar(ADE) = 81*4/9
= 9*4 = 36 cm²
So, DE/BC = 2/3 .........................................(1)
DE║BC So, Alternate Int. ∠s are Equal.
So, Triangle triangle ABC is Similar to trian. ADE
So, Ar(ABC)/Ar(ADE) = (BC/DE)²
so, 81/Ar(ADE) = (3/2)² [By Eqn(1)]
Ar(ADE) = 81*4/9
= 9*4 = 36 cm²
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