Testinar Grade 3 math

Shape Categories

Students will classify two-dimensional shapes by shared attributes and explain category relationships.

CH06-11 Geometry and Measurement
Name
Date
Score
____ / 8
Directions Solve each problem. Show your reasoning on the page or on separate paper. Check the answer key only after finishing.

  1. Which statement is true about rectangles and rhombuses?

    1. All rectangles are rhombuses
    2. All rhombuses are rectangles
    3. Both are quadrilaterals (4-sided figures)
    4. Rectangles have equal sides like rhombuses do

  2. Which shape is NOT a quadrilateral?

    1. Parallelogram
    2. Triangle
    3. Rhombus
    4. Square

  3. Which shape has 4 equal sides and 4 right angles?

    1. Rectangle
    2. Rhombus
    3. Square
    4. Trapezoid

  4. A rectangle has opposite sides that are equal. How many pairs of equal sides does a rectangle have?

    1. 1 pair
    2. 2 pairs
    3. 3 pairs
    4. 4 pairs

  5. Which property do all squares and all rhombuses share?

    Shape Categories visual for G3-C06-T11-Q005
    1. All have 4 right angles
    2. All have 4 equal sides
    3. All have no parallel sides
    4. All have 5 sides

  6. Is every square also a rectangle?

    1. Yes, because a square has 4 sides and 4 right angles
    2. No, because a square has equal sides
    3. No, because a square has more sides
    4. Yes, only if it is very large

  7. Which statement about parallel sides is true?

    Shape Categories visual for G3-C06-T11-Q007
    1. All triangles have parallel sides
    2. All rectangles have parallel sides
    3. No quadrilaterals have parallel sides
    4. Only circles have parallel sides

  8. Which of the following is true about a square?

    1. It is a rectangle and a rhombus
    2. It is a trapezoid
    3. It is a triangle
    4. It has no right angles
Teacher and parent reference

Answer key and explanations

  1. C. Both are quadrilaterals (4-sided figures)

    A rectangle has \(4\) right angles, and a rhombus has \(4\) equal sides; both are quadrilaterals. They share the attribute of having four sides, even though they differ in other properties.

  2. B. Triangle

    A triangle has 3 sides. A quadrilateral has 4 sides, so a parallelogram, rhombus, and square are all quadrilaterals, but a triangle is not.

  3. C. Square

    A square has all 4 sides equal in length and all 4 angles are right angles (90 degrees). This makes it both a rectangle and a rhombus.

  4. B. 2 pairs

    A rectangle has two pairs of opposite equal sides: one pair of long sides and one pair of short sides.

  5. B. All have 4 equal sides

    Both squares and rhombuses have 4 sides that are all equal in length. Squares also have 4 right angles, but rhombuses do not necessarily have them.

  6. A. Yes, because a square has 4 sides and 4 right angles

    A square is a special kind of rectangle that also has all sides equal. Every square has the properties of a rectangle (4 sides, 4 right angles), so every square is a rectangle.

  7. B. All rectangles have parallel sides

    Rectangles have opposite sides that are parallel (they never meet). Triangles have no parallel sides, and not all quadrilaterals have them.

  8. A. It is a rectangle and a rhombus

    A square has 4 equal sides (making it a rhombus) and 4 right angles (making it a rectangle). So a square is both.

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