andAll the solutions provided in **McGraw Hill My Math Grade 3 Answer Key PDF Chapter 14 Review **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 3 Chapter 14 Review Answer Key

**Vocabulary Check**

**Write each word from the word bank below by its description or example.**

angle

attribute

hexagon

octagon

parallel

parallelogram

pentagon

polygon

quadrilateral

rhombus

square

vertex

Question 1.

Answer: The name of the above figure is a **parallelogram**.

Question 2.

a polygon with 5 sides and 5 angles

Answer: A polygon with 5 sides and 5 angles is a **pentagon**.

Question 3.

Answer: The name of the above figure is **angle**.

Question 4.

a parallelogram with 4 equal sides, but not necessarily 4 right angles

Answer: A parallelogram with 4 equal sides, but not necessarily 4 right angles is **rhombus**

Question 5.

a rectangle with 4 equal sides

Answer: A rectangle with 4 equal sides is **square**.

Question 6.

Answer: The name of the above figure is a **hexagon**.

Question 7.

Answer: The name of the above figure is an **octagon**.

Question 8.

a closed figure formed by three or more straight sides that do not cross each other

Answer: A closed figure formed by three or more straight sides that do not cross each other is called **polygon**.

Question 9.

Answer: The above two non-intersecting lines are called parallel lines.

Question 10.

Some examples include number of sides, number of angles, and parallel sides.

Answer: Attribute

Question 11.

a polygon with 4 sides and 4 angles

Answer: A polygon with 4 sides and 4 angles is a **Quadrilateral**.

Question 12.

Answer: The name of the point is a **vertex**.

**Concept Check**

**Describe each shape. Determine the number of sides and angles. Then classify each shape.**

Question 13.

_____________ sides

_____________ angles

This is a(n) _______________.

Answer:

6 sides

6 sngles

This is a hexagon

Question 14.

_____________ sides

_____________ angles

This is a(n) _______________.

Answer:

4 sides

4 angles

This is a trapezoid

**Describe the attributes of each quadrilateral. Then classify the quadrilateral.**

Question 15.

Answer:

4 sides

4 angles

This is a parallelogram

Question 16.

Answer:

4 sides

4 angles

This is a square

**Partition each figure into equal sections as indicated. Then write the unit fraction of the figure’s area that each equal section represents.**

Question 17.

3 equal sections

Answer:

The unit fraction is 1/3

Question 18.

6 equal sections

Answer:

The unit fraction is 1/6

**Problem Solving**

Question 19.

The state of Nevada is almost in the shape of a quadrilateral. Complete the attributes of the outline of the state of Nevada.

There is _____________ set of parallel opposite sides. Opposite sides are not equal in length.

Opposite angles are not the same size, but there appear to be ____________ right angles.

Answer:

There is **one** set of parallel opposite sides. Opposite sides are not equal in length.

Opposite angles are not the same size, but there appear to be **two** right angles

Question 20.

Karen is thinking of two numbers. Their difference is 9 and their sum is 17. What are the numbers?

Answer:

Given,

Karen is thinking of two numbers. Their difference is 9 and their sum is 17.

17 – 9 = 8

8 + 9 = 17,

So, the numbers are 8, 9 and 17.

Question 21.

Naomi cut out two figures from construction paper. One figure is rectangular. The shape of the second figure has all the attributes of the rectangular figure. In addition, it has four sides that are equal in length. Classify the shape of the second figure.

Answer:

Naomi cut out two figures from construction paper. One figure is rectangular. The shape of the second figure has all the attributes of the rectangular figure.

The figure with four equal sides is square.

So, the shape of the second figure is square.

Question 22.

Four students were asked to draw a parallelogram. Each drew a differently-named figure, but each was correct. Explain how that can be.

Answer: Each student can draw a different figure that is still a parallelogram because there are many types of parallelograms. Rectangles, squares, rhombi, and rhombus are all parallelograms, even though they are different figures.

**Test Practice**

Question 23.

Identify the figure that is not a trapezoid.

Answer:

Figure A is not a trapezoid because the opposite sides are parallel.

**Reflect**

Use what you learned about geometric shapes to complete the graphic organizer.

Now reflect on the ESSENTIAL QUESTION ? Write your answer below.