The vertices of a quadrilateral ABCD have the coordinates A(-3; 18), B(15; 14), C(11;-4) and D(-7; 0). P and Q are the points: P(-3; -7) and Q(3; 0).
(a) Using a scale of 2cm to represent 10 units on both axes, plot A, B, C, D, P and Q.
(b) Join the vertices of quadrilateral ABCD. What kind of quadrilateral is it?
(c) Find the co-ordinates of the point where the diagonals of ABCD cross.?
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Asked by Rickbarles on 28th March, 2023
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