Refer to our Texas Go Math Grade 3 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 3 Lesson 15.1 Answer Key Classify Quadrilaterals.

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An angle is formed by two rays that share an endpoint. Two dimensional figures have angles formed by two line segments that share an endpoint. The shared endpoint is called a vertex. The plural of vertex is vertices.

Jason drew this polygon on dot paper.
There are _________ angles.
There are _________ sides.

There are 4 angles.
There are 4 sides.
Math Idea
A polygon is a closed plane figure with straight sides that are line segments.

Jason’s polygon has 2 right angles. They form square corners. You can use the corner of a sheet of paper to tell if an angle is a right angle. Draw boxes to show the right angles.

Look at Jason s polygon. How many pairs of sides are parallel?

Lines that appear to never cross or meet and are always the saine distance apart are parallel lines.
So, Jason’s polygon has ___________ pair of parallel sides.
So, Jason’s polygon has 1 pair of parallel sides.

Some quadrilaterals cannot be classified as a trapezoid, parallelogram, rectangle, square, or rhombus.

__________ sides
__________ angles
4 sides
4 angles

trapezoid

exactly _________ pair of opposite sides that are parallel lengths of sides could be the same
exactly 1 pair of opposite sides that are parallel lengths of sides could be the same

parallelogram

__________ pairs of opposite sides that are parallel
__________ pairs of sides that are of equal length.
2 pairs of opposite sides that are parallel
2 pairs of sides that are of equal length.

rectangle
_________ pairs of opposite sides that are parallel
__________ pairs of sides that are of equal length
__________ right angles

2 pairs of opposite sides that are parallel
2 pairs of sides that are of equal length
4 right angles

square
_________ pairs of opposite sides that are parallel
_________ sides that are of equal length
_________ right angles

2 pairs of opposite sides that are parallel
4 sides that are of equal length
4 right angles

rhombus
_________ pairs of opposite sides that are parallel
_________ sides that are of equal length

2 pairs of opposite sides that are parallel
4 sides that are of equal length

Math Talk
Mathematical Processes

Explain why a square can also be named a rectangle or a rhombus.
Explanation:
A square can be described as a rectangle because a square has 4 equal sides
and a rectangle has 2 parallel sides are equal
In rhombus 4 sides are equal so, A rhombus can also be called as a square
Every Square is a rectangle, but not every rectangle is a square.
A square is a special kind of closed figure with four straight sides and four right angles that also has sides that all have equal length. Therefore, we can conclude that: A Square is a special kind of rectangle

Share and Show

Look at the quadrilateral at the right.

Question 1.
How many right angles are in the quadrilateral? ________ right angles
4 right angles
Explanation:
2 pairs of opposite sides that are parallel
2 pairs of sides that are of equal length
4 right angles

Question 2.
Which sides appear to be parallel? ___________
A and C, B and D are parallel
Explanation:
2 pairs of opposite sides that are parallel
2 pairs of sides that are of equal length
4 right angles

Question 3.
Explanation:
2 pairs of opposite sides that are parallel
2 pairs of sides that are of equal length
4 right angles

Circle all the words that describe the quadrilateral.

Question 4.

rectangle
rhombus
square
parallelogram
Explanation:
2 pairs of opposite sides that are parallel
4 sides that are of equal length
4 right angles

Question 5.

rhombus
parallelogram
square
rectangle
Explanation:
2 pairs of opposite sides that are parallel
4 sides that are of equal length

Problem Solving

H.O.T. Analyze Write all or some to complete the sentence for 6-9.

Question 6.
The opposite sides of __________ rectangles are parallel.
Explanation:
The opposite sides of all rectangles are parallel.

Question 7.
_________ sides of a rhombus are the same length.
Explanation:
All sides of a rhombus are the same length.

Question 8.
_________ rhombuses are squares.
Explanation:
Some rhombuses are squares.

Question 9.
_________ trapezoids have 1 pair of opposite sides that are parallel.
Explanation:
All trapezoids have 1 pair of opposite sides that are parallel.

Question 10.
Communicate I am a quadrilateral that has no right angles and 4 sides that are of equal length. What figure am I?
Explanation:
2 pairs of opposite sides that are parallel
4 sides that are of equal length

Question 11.
H.O.T. Multi-Step I am a polygon that has 4 sides and 4 angles. All of my angles are right angles. Circle all the figures that I could be.

rectangle
square
rhombus
trapezoid
parallelogram

Explanation:
Circled the figures that I am a polygon that has 4 sides and 4 angles.
All of my angles are right angles.

Fill in the bubble for the correct answer choice.

Question 12.
While playing football after school, Jesse notices that the distance marker contains a quadrilateral with one pair of opposite sides that are parallel. What type of quadrilateral is it?

(A) rectangle
(B) trapezoid
(C) square
(D) rhombus
Explanation:
Exactly 1 pair of opposite sides that are parallel lengths of sides could be the same

Question 13.
Dean makes a pattern using 10 square tiles. How many pairs of opposite sides are parallel in the 10 square tiles?
(A) 20
(B) 10
(C) 40
(D) 0
Explanation:
Explanation:
2 pairs of opposite sides that are parallel
4 sides that are of equal length
4 right angles

Question 14.
Multi-Step Carina is using scraps of fabric to make a quilt. How many of the fabric scraps are in the shape of rhombuses?

(A) 1
(B) 2
(C) 0
(D) 3
Explanation:
Explanation:
2 pairs of opposite sides that are parallel
4 sides that are of equal length

Texas Test Prep

Question 15.

(A) There is I right angle.
(B) There are 4 right angles.
(C) There are no right angles.
(D) There are 2 right angles.
Explanation:
The above quadrilateral has 2 right angles
option D is true.

Texas Go Math Grade 3 Lesson 15.1 Homework and Practice Answer Key

Circle all the words that describe the quadrilateral.

Question 1.

parallelogram
trapezoid
rhombus
rectangle
Explanation:
2 pairs of opposite sides that are parallel
2 pairs of sides that are of equal length
4 right angles

Question 2.

parallelogram
trapezoid
rhombus
rectangle
Explanation:
Exactly 1 pair of opposite sides that are parallel lengths of sides could be the same

Problem Solving

Write all or some to complete the sentence for 3-6.

Question 3.
_________ rectangles are squares.
Every Square is a rectangle, but not every rectangle is a square.

Question 4.
__________ angles of a rectangle are right angles.
Explanation:
All angles of a rectangle are right angles.

Question 5.
__________ parallelograms have all 4 sides that are equal in length.
Explanation:
Some parallelograms have all 4 sides that are equal in length.

Question 6.
__________ trapezoids have 2 sides that are equal in length.
Some trapezoids have 2 sides that are equal in length.

Question 7.
I am a polygon that has 2 pairs of opposite sides that are parallel. Circle all of the figures that I could be.

Question 8.
I am a quadrilateral that has 4 right angles. My opposite sides are parallel and of equal length. What figure am I?
Explanation:
2 pairs of opposite sides that are parallel
4 sides that are of equal length
4 right angles

Lesson Check

Question 9.
Lily makes an art poster that has exactly one pair of opposite sides that are parallel and 2 sides that are the same length. What figure is Lily’s poster?
(A) trapezoid
(B) rectangle
(C) rhombus
(D) parallelogram
Explanation:
Exactly 1 pair of opposite sides that are parallel lengths of sides could be the same

Question 10.
Desmond draws a polygon that has 4 sides that are the same length and no right angles. How can Desmond classify the polygon he drew?
(A) square
(B) rhombus
(C) rectangle
(D) parallelogram
Explanation:
Explanation:
2 pairs of opposite sides that are parallel
4 sides that are of equal length

Question 11.
Kara makes the kite shown at the right from 4 triangles. What is the shape of Kara’s kite?

(A) square
(B) parallelogram
(C) rhombus
Explanation:
A quadrilateral is a polygon that has exactly four sides. (This also means that a quadrilateral has exactly four vertices, and exactly four angles.)

Question 12.
Multi-Step Ben is making cutouts to use in an art design. How many of the cutouts have the shape of a rectangle?

(A) 5
(B) 2
(C) 4
(D) 3