All the solutions provided in **McGraw Hill My Math Grade 2 Answer Key PDF Chapter 12 Lesson 5 Faces, Edges and Vertices **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 12 Lesson 5 Faces, Edges and Vertices

**Explore and Explain**

The shape is a ______________.

Answer:

The shape is a cube

**Teacher Directions:** Start at 1. Connect the dots in number order. Write the name of the shape you drew.

Answer:

I have drawn a cube

**See and Show**

You can describe three-dimensional shapes by the number of faces, edges, and vertices.

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

**Use three-dimensional shapes. Count the faces, edges, and vertices.**

Question 1.

Shape:

___________ Faces

___________ Edges

___________ Vertices

Answer:

6 Faces

12 Edges

8 Vertices

Explanation:

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 2.

Shape:

___________ Faces

___________ Edges

___________ Vertices

Answer:

6 Faces

12 Edges

8 Vertices

Explanation:

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 3.

Shape:

___________ Faces

___________ Edges

___________ Vertices

Answer:

5 Faces

8 Edges

5 Vertices

Explanation:

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 4.

Shape:

___________ Faces

___________ Edges

___________ Vertices

Answer:

0 Faces

0 Edges

0 Vertices

Explanation:

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

**Talk Math**

What figure has 6 equal faces? How do you know?

Answer:

Cube has 6 equal faces.

As it has 6 square faces.

**On Your Own**

**Circle the shapes that match the description.**

Question 5.

0 faces, 0 edges, 0 vertices

Answer:

Explanation:

A sphere has 0 faces 0 edges and 0 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 6.

6 faces,12 edges, 8 vertices

Answer:

Explanation:

Rectangular prism and cube has 6 faces,12 edges, 8 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 7.

5 faces, 8 edges, 5 vertices

Answer:

Explanation:

A pyramid has 5 faces, 8 edges, 5 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 8.

6 equal faces, 12 edges, 8 vertices

Answer:

Explanation:

A cube has 6 equal faces, 12 edges, 8 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

**Circle the objects that match the description.**

Question 9.

6 faces, 12 edges, 8 vertices

Answer:

Explanation:

A gift box and the wooden cube has 6 faces, 12 edges, 8 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 10.

0 faces, 0 edges, 0 vertices

Answer:

Explanation:

A sphere shaped ball and orange has 0 faces, 0 edges, 0 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 11.

6 faces, 12 edges, 8 vertices

Answer:

Explanation:

A pin box has 6 faces, 12 edges, 8 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 12.

5 faces, 8 edges. 5 vertices

Answer:

Explanation:

A pyramid has 5 faces, 8 edges. 5 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

**Problem Solving**

Question 13.

Mindy drew the three shapes below. Circle the shape that has 6 faces and 12 edges.

Answer:

Explanation:

Mindy drew the three shapes below.

A rectangular prism has 6 faces and 12 edges.

Question 14.

Ryan has a poster. The poster shows all shapes that have less than three faces. Circle the shape that is not on the poster.

Answer:

Explanation:

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Ryan has a poster. The poster shows all shapes that have less than three faces.

so, the shapes is cube it has 6 faces

**HOT Problem** Which shape does not belong? Circle it. Explain why it does not belong.

Answer:

Explanation:

Rather than sphere every shape has faces

so, circled the sphere.

### McGraw Hill My Math Grade 2 Chapter 12 Lesson 5 My Homework Answer Key

**Practice**

**Circle the shapes or objects that matches the description.**

Question 1.

6 faces, 12 edges, 8 vertices

Answer:

Explanation:

A cube and rectangular prism has 6 faces, 12 edges, 8 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 2.

0 faces, 0 edges, 0 vertices

Answer:

Explanation:

A sphere has 0 faces, 0 edges, 0 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 3.

5 faces, 8 edges, 5 vertices

Answer:

Explanation:

A pyramid has 5 faces, 8 edges, 5 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 4.

6 faces, 12 edges, 8 vertices

Answer:

Explanation:

A rectangular prism has 6 faces, 12 edges, 8 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

**Circle the objects that match the descriptions.**

Question 5.

6 faces, 12 edges, 8 vertices

Answer:

Explanation:

A rectangular prism has 6 faces, 12 edges, 8 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 6.

0 faces, 0 edges, 0 vertices

Answer:

Explanation:

A sphere shaped ball has 0 faces, 0 edges, 0 vertices

A face is a flat surface.

An edge is where 2 faces meet.

A vertex is where 3 or more faces meet.

Question 7.

I am a three-dimensional shape. I have 5 faces. I have 8 edges and 5 vertices. What shape am I?

Answer:

Explanation:

I am a three-dimensional shape.

A pyramid has 5 faces, 8 edges, 5 vertices

**Vocabulary Check**

**Complete each sentence.**

face

edge

vertex

Question 8.

A ______________ is a flat surface.

Answer:

face

Explanation:

A face is a flat surface.

Question 9.

A ______________ is where 3 or more faces meet.

Answer:

vertex

Explanation:

A vertex is where 3 or more faces meet.

Question 10.

An _______________ is where 2 faces meet.

Answer:

edge

Explanation:

An edge is where 2 faces meet.

**Math at Home**

Have your child identify real-life objects in your home that have the same shape as one of the shapes learned in this lesson.

Answer:

The dice is in the shape of a cube.