- ASupplementary
- BComplementary
- CEqual
- DReflex
Step-by-Step Solution
Such a quadrilateral is a parallelogram, in which consecutive angles add up to 180 deg (supplementary).
Answer: A) Supplementary
If both pairs of opposite angles of a quadrilateral are equal, then its consecutive angles are:
Class 9Conditions for a ParallelogramGeometry — Quadrilaterals
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