Geometry, Unit 6: Quadrilaterals and Polygons. Key terms, formulas, and worked-example cues a high school student meets for this unit, building on prior units. Front: the term, formula name, or short problem cue. Back: the definition, formula, or solution method.
30 cards · basic cards · AI-written, checked twice. Edit anything.
- What is a quadrilateral?
- A polygon with four sides
- What is the sum of the interior angles of any quadrilateral?
- 360 degrees
- What is a parallelogram?
- A quadrilateral with two pairs of parallel sides
- What is true about opposite sides of a parallelogram?
- They are congruent
- What is true about opposite angles of a parallelogram?
- They are congruent
- What is true about consecutive angles of a parallelogram?
- They are supplementary
- What is true about the diagonals of a parallelogram?
- They bisect each other
- What is a rectangle?
- A parallelogram with four right angles
- What is special about a rectangle's diagonals, beyond a general parallelogram?
- They are congruent
- What is a rhombus?
- A parallelogram with four congruent sides
- What is special about a rhombus's diagonals?
- They are perpendicular and bisect the angles
- What is a square?
- A parallelogram that is both a rectangle and a rhombus
- What is a trapezoid?
- A quadrilateral with exactly one pair of parallel sides
- What are the parallel sides of a trapezoid called?
- The bases
- What is an isosceles trapezoid?
- A trapezoid whose non-parallel sides (legs) are congruent
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