the vertices of a abc are a4 6 b1 5 and c7 2 a


The vertices of a ? ABC are A(4, 6), B(1. 5) and C(7, 2). A line is drawn to intersect sides AB and AC at D and E respectively, such that AD/AB = AE/AC = 1/4 .Calculate the  area of  the  Δ ADE  and  compare it  with  the  area of  Δ ABC.(Ans: 15/32 sq units; 1:16)

Ans :  Hint :

AD/AB = AE /AC= 1/4

 

∴ AD : DB = 1 : 3 & AE : EC = 1 : 3

Find D & E and find area of triangle ADE and triangle ABC and compare.

 

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Mathematics: the vertices of a abc are a4 6 b1 5 and c7 2 a
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