1.

destion6In the given figure, AB Il DC, <DCE = 60° and LACD = 55°. Find x, yand z.(a)

Answer»

x + y + z = 180...... (1)

Using triangle angle sum property

z + 55 + 60 = 180 ( linear pair) z = 180 - 115z = 65

x = 60 (alternate angles)

From eq(1)60 + y + 65 = 180y = 180 - 125y = 55

Therefore, x = 60, y = 55, z = 65



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