given: abcd is a parallelogram.
prove: ∠a and ∠d are supplementary.

by the definition of a parallelogram, ab∥dc. ad is a transversal between these sides, so ∠a and ∠d are ? angles. because ab and dc are ? , the same-side interior angles must be ? by the same-side interior angles theorem. therefore, ∠a and ∠d are supplementary.

Sorry this is so late but the answers are: same-side interior, parallel, and supplementary

Cisco co cop hop h0 cop go srry cop hop h0 d8

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c