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Q.

Matrix Matching :

ABCD is a rectangle in the clockwise direction. The co-ordinates of A and C are (1,3) and (5,1)  respectively. The vertices B and C are lies on the line y=2x+c, the co-ordinates of the

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a

The middle point of BD is

,

The middle point of AB is

,

The middle point of BC is

,

The point D is

b

(2,0)

,

(3,2)

,

(52,72)

,

(92,52)

answer is B, C, D, A.

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Detailed Solution

A)    A(1,3),C(5,1) middle point of BD

= middle point of AC

=[x1+x22,y1+y22]

=[1+52,3+12]

O=(3,2)

O(3,2) is lies in y=2x+c

2=2(3)+C 

C=4

 The line of BD is

D=(k,2k4)

y=2x4

ADCD

(Slope AD× (slope CD=1

2k43k1×12k+y51=1

(2k7k1×2k5k5)=1

4k210k14k+35=(k26k+5)

5k230k+40=0

k26k+8=0

(k4)(k2)=0

k=4,2

D=(k,2k4)

=(2,0)

B) Let B=(x,y)

Point (O)=(2+x2,0+y2)

(3,2)=(2+x2,y2)

3=2+x2

x=4

y2=2

y=4

B=(4,4)

B)    Middle point of AB=(1+42,3+42)

=(52,72)

C)    Middle point of BC=(4+52,4+12)

=(92,52)

The point  D=(2,0)

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Matrix Matching :ABCD is a rectangle in the clockwise direction. The co-ordinates of A and C are (1,3) and (5,1)  respectively. The vertices B and C are lies on the line y=2x+c, the co-ordinates of the