in the given figure AB ||DE angle ABC = 65° and angle CDE =135° then find angle BCD?
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Answer:
If AB and DE are parallel, then BCD will be 20°.
Explanation:
Extent the AB and consider the intersection point with DC as F. As AB and DE are parallel BFC will be 180 - 135 which 45°. Now FBC will be 180 - 65 which is 115. As the total sum of the triangle FBC is 180.
BCD will be 180 - (115 + 45) which is 20°
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