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WAEC - Mathematics (2007 - No. 57)
From the diagram, find the value of x in the diagram.
80
o
70
o
55
o
35
o
解释
y + 110
o
= 180
o
(angles on a straight line)
y = 180 - 110
= 70
o
x = y(corresponding angles)
x = 70
o
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