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Name
LESSON
Date
Class
Practice C
7-6 Quadrilaterals
Give all the possible names for each figure. Circle the most
exact name.
1.
2.
3.
4.
Draw each quadrilateral as it is described. If it is not possible,
explain.
5. a parallelogram that is also a trapezoid
6. a rhombus that is not a parallelogram
7. Draw an example of a quadrilateral that is
not a parallelogram or a trapezoid.
8. All the sides of a quadrilateral measure 25 cm. Explain why this
is not enough information to classify what kind of quadrilateral
it is.
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Holt Middle School Math Course 1
Practice A
7-6 Quadrilaterals
Exploration Recording Sheet
7-6 Quadrilaterals
LESSON
LESSON
Find a real-world example for each quadrilateral. Possible
Quadrilateral
Choose the correct answer.
answers:
2. Which name is most descriptive of
the figure shown below?
1. Which name is most descriptive of
the figure shown below?
Example
1.
a piece of tangram
puzzle
F parallelogram
G square
H rectangle
!
J quadrilateral
A quadrilateral
B parallelogram
C square
D rhombus
!
Parallelogram
2.
the diamond shape in
a deck of cards
4. Which of the following statements is
always true?
F A trapezoid is also a
parallelogram.
G A square is also a rhombus.
!
H A parallelogram is also a
rectangle.
J A rectangle is also a square.
3. Which of the following statements is
not always true?
A A quadrilateral has 4 sides.
B A quadrilateral has 4 angles.
C A quadrilateral has straight sides.
D A quadrilateral has right angles.
!
Rhombus
3.
a window
Rectangle
4.
side view of a
yogurt container
5. Carol says this poster is a parallelogram.
Anita says it is a rectangle. Who is right?
Explain.
Trapezoid
TALENT
SHOW
Think and Discuss
5. Discuss how the quadrilaterals are similar and different.
All quadrilaterals have 4 sides and 4 angles. Not all have sides
They both are right. A rectangle is also a parallelogram because its
that are the same length.
opposite sides are parallel and congruent, and its opposite angles are
congruent.
6. Explain why a rectangle is a parallelogram.
6. Joel hung two square mirrored tiles side-by-side in his
bathroom. What is the best description for the geometric
figure the two mirrors formed together?
A parallelogram has 4 sides and opposite sides are parallel,
the same as a rectangle.
a rectangle
56
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
Holt Middle School Math Course 1
Practice B
7-6 Quadrilaterals
57
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
Practice C
7-6 Quadrilaterals
LESSON
LESSON
Give the most descriptive name for each figure.
1.
2.
Give all the possible names for each figure. Circle the most
exact name.
3.
1.
rhombus
trapezoid
4.
parallelogram
5.
2.
quadrilateral, parallelogram,
6.
quadrilateral, trapezoid
rhombus
3.
quadrilateral
square
parallelograms
8. A rhombus is sometimes a
9. All trapezoids are also
quadrilateral
10. A
and four angles.
.
square
quadrilaterals
4.
rectangle
Complete each statement.
7. All rectangles are also
Holt Middle School Math Course 1
quadrilateral, parallelogram,
quadrilateral, parallelogram,
rectangle
square, rectangle, rhombus
Draw each quadrilateral as it is described. If it is not possible,
explain.
.
.
5. a parallelogram that is also a trapezoid
impossible because a trapezoid
is any plane figure with four straight sides
11. A quadrilateral with two sets of parallel lines, but does not have 90° angles is called
rhombus
a
.
12. Devon made a table top in the shape of a quadrilateral. All
of its angles measure 90°. What could the shape of Devon’s
table top be?
has only two parallel sides
6. a rhombus that is not a parallelogram
impossible because a rhombus is
always a parallelogram
7. Draw an example of a quadrilateral that is
not a parallelogram or a trapezoid.
a rectangle or a square
Students should draw a four-sided
figure with no parallel sides.
13. The perimeter of a rhombus is 64 inches. What is the length of
each side of the rhombus? Explain.
16 inches, All four sides of a rhombus are congruent, and 64 ! 4 " 16.
8. All the sides of a quadrilateral measure 25 cm. Explain why this
is not enough information to classify what kind of quadrilateral
it is.
14. Explain why a trapezoid is a quadrilateral, but a quadrilateral is
not always a trapezoid.
It could either be a square or a rhombus. I would need to know the angle
A trapezoid has four sides, always making it a quadrilateral. A quadrilateral
measurements to further classify it.
can,but not always, have two parallel sides, thus a quatrilateral is not
always a trapezoid.
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
58
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
Holt Middle School Math Course 1
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
152
59
Holt Middle School Math Course 1
Holt Middle School Math Course 1