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`        If A (6,3) ,B(-3,5) ,C(4,-2) and D(x,3x) are four points If the ratio of area of triangle DBC and triangle ABC is 1:2 then value of x will be`
7 years ago

147 Points
```										Dear pallvi
Find the area of triangle ABC
ΔABC =49/2

similerly find the area of triangle DBC
ΔDBC =7|2x-1|
now given ΔDBC/ΔABC   =1/2
so   7|2x-1|/49/2  = 1/2
2 |2x-1|/7 =1/2
|2x-1| =7/4
2x-1  =±7/4

+ve sign                                             -ve sign

2x-1 = 7/4                                        2x-1 =-7/4
x =11/8                                            x=-3/8

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```
7 years ago
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