Math, asked by pearl0418, 11 months ago

pls solve the 2nd one​

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Answered by aditi346454
2

Answer:

here ia the solution of ur ques.

i hope it will help u ☺☺

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Answered by ShresthaTheMetalGuy
1

Answer:

(ii)A(2,3) ; B(4,k) ; C(6,3)

If these points are collinear, then the area formed by the triangle by joining these points is equal to zero.

i.e., Ar. (∆ABC)=0

Ar.(∆ABC)=

 \frac{1}{2} (x1(y2 - y3) + x2(y3 - y1)   + x3(y1 - y2)) = 0

A(2,3) ; B(4,k) ; C(6,3)

 \frac{1}{2} (2(k - 3) + 4(3 - 3) + 6(3 - k)) = 0

 0  = (2k - 6 + 18 - 6k)

4k = 12

==>k=3

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