Use a graph paper for this question. Take 2 cm=1 unit along both the axes.
(a) Plot the points A(0,4),B(2,2),C(5,2) and D(4,0).E(0,0) is the origin.
(b) Reflect B,C,D on the y-axis and name them as B′,C′ and D′ respectively.
(c) Join the points ABCDD′C′B′ and A in order and give a geometrical name to the closed figure.