7. In the given figure, ABCD is a parallelogram in which angel OCB= 25°
and angel OAB = 45°. Find
a.angel DAB
b. angel DOC
c. angel ABC
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Answer:
(a) angle DAB
(b) angle DCO
(c) angle ABC
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Answer:
ABCD is a parallelogram
angel OCB= 25°
angel OAB = 45°
A. angel DAB
OAB = CDO = 45
OCB = OAD = 25°
angel DAB = 45+25 = 70
b. angel DOC
ADC = 180 - 70 = 110
angle DOC = 180 - 45 - 55 = 80
c. angel ABC
ABC = ADC = 110
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