In the Fig., AB || CD. Determine x. AB=60° , CD=40°
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Answer:
30+45
o
+a=180
a=105
o
30+35+b=180
o
b=105
o
a+b+c+d=360 [we know ∠c=∠ d]
2c+105+105=360
2c=150
c=75
o
∴∠x=∠a+∠b+∠c=105+105+75
=285
o
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Answer:
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