Question

in a quadrilateral there is angle x & angle y if angle x is 70° then what is angle y
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Answer 1

Step-by-step explanation:

if one of the angle in quadrilateral is y ( where x = 70°) then

x+y+x+y = 180° ( opposite angles are same )

2(x+y) = 180°

x+y = 90

y = 90-x

y = 90-70 = 20° ..