# Which of the following is true about any two consecutive angles in a parallelogram?

Question: Which of the following is true about any two consecutive angles in a parallelogram?

In a parallelogram, any two consecutive angles are supplementary, which means that they add up to 180 degrees. This property is a direct consequence of the fact that a parallelogram is defined by having opposite sides that are parallel. When two lines are parallel and are cut by a transversal, the interior angles on the same side of the transversal are supplementary. Therefore, in the case of a parallelogram, each pair of consecutive angles along one side of the parallelogram will have a sum of 180 degrees. This is a fundamental theorem in Euclidean geometry and is used to solve various geometric problems involving parallelograms and their properties. Understanding this property can be particularly useful in determining unknown angles within parallelograms and other quadrilaterals that share similar properties.