Draw the axes and mark the points AC1,4) B(2,1), C(6,2) and D (55)
1) What is the most suitable name of the quadric lateral ABCD
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A(4,5),B(7,6),C(4,3),D(1,2)
AB=
(4−7)
2
+(5−6)
2
AB=
10
BC=
(7−4)
2
+(6−3)
2
BC=
18
CD=
(4−1)
2
+(3−2)
2
CD=
10
AD=
(4−1)
2
+(5−2)
2
AD=
18
AB=CD=
10
AD=BC=
18
BD=
(7−1)
2
+(6−2)
2
BD=
42
Since the opposite sides are equal and diagonals are unequal.
So the quadrilateral would be a parallelogram.
Step-by-step explanation:
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