Math Problem Statement

For each of the following quadrilaterals, select all the properties that must be true: parallelogram, rhombus, rectangle, based on the table provided.

Solution

Let’s analyze the given table and solve the properties of each quadrilateral.

(a) Parallelogram

  1. Four right angles: No. A parallelogram doesn’t necessarily have right angles unless it is a rectangle or square.
  2. Two pairs of parallel sides: Yes. By definition, a parallelogram always has two pairs of parallel sides.
  3. Only one pair of parallel sides: No. A parallelogram always has two pairs of parallel sides.
  4. All sides congruent: No. A parallelogram doesn’t require all sides to be congruent unless it is a rhombus or square.

Correct options for parallelogram: Two pairs of parallel sides.


(b) Rhombus

  1. Four right angles: No. A rhombus does not require right angles unless it is a square.
  2. Two pairs of parallel sides: Yes. A rhombus is a type of parallelogram, so it always has two pairs of parallel sides.
  3. Only one pair of parallel sides: No. A rhombus has two pairs of parallel sides.
  4. All sides congruent: Yes. By definition, all sides of a rhombus are congruent.

Correct options for rhombus: Two pairs of parallel sides, All sides congruent.


(c) Rectangle

  1. Four right angles: Yes. By definition, a rectangle always has four right angles.
  2. Two pairs of parallel sides: Yes. A rectangle is a type of parallelogram, so it always has two pairs of parallel sides.
  3. Only one pair of parallel sides: No. A rectangle has two pairs of parallel sides.
  4. All sides congruent: No. A rectangle doesn’t require all sides to be congruent unless it is a square.

Correct options for rectangle: Four right angles, Two pairs of parallel sides.


Final Summary:

QuadrilateralFour Right AnglesTwo Pairs of Parallel SidesOnly One Pair of Parallel SidesAll Sides Congruent
Parallelogram
Rhombus
Rectangle

Let me know if you would like further clarification or details on quadrilaterals!


Questions to Expand Knowledge:

  1. What additional properties define a square compared to a rhombus and a rectangle?
  2. Why are parallelograms considered a broader category in quadrilaterals?
  3. How can diagonals help in identifying specific quadrilaterals like rhombuses or rectangles?
  4. Can a shape be both a rectangle and a rhombus? If so, what is it called?
  5. How do trapezoids differ from parallelograms in terms of parallel sides?

Tip:

Always verify the definitions and distinguishing properties of quadrilaterals to ensure proper categorization.

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Math Problem Analysis

Mathematical Concepts

Quadrilaterals
Properties of parallelograms
Properties of rhombuses
Properties of rectangles

Formulas

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Theorems

Definition of parallelograms
Definition of rhombuses
Definition of rectangles

Suitable Grade Level

Grades 6-8