The diagonals of the rectangle ABCD intersect at O. If angle COD=78° then DOA is:
a) 78°
b) 122°
c) 70°
d) 102°
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Answer:
angle DOA = 102°
Step-by-step explanation:
COD +AOD =180° ( linear pair)
78 + AOD =180°
AOD = 180-72= 102°
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