Answer:
- Parallelogram
- Quadrilateral
- Rectangle
Explanation:
You want to know the names of a 4-sided figure with opposite sides congruent and adjacent sides perpendicular.
Congruent sides
A 4-sided figure is a quadrilateral.
When opposite sides are the same length, the quadrilateral is a parallelogram.
When corners of a parallelogram are right angles, it is a rectangle.
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Additional comment
A rhombus also has congruent adjacent sides, as does a square. We are not told that is the case here. A trapezoid is not a parallelogram.