All the solutions provided in **McGraw Hill My Math Grade 1 Answer Key PDF Chapter 9 Lesson 3 Circles **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 1 Answer Key Chapter 9 Lesson 3 Circles

**Explore and Explain**

___________ sides

___________ vertices

**Teacher Directions:** Fish blow bubbles in the shape of circles. Finish drawing the bubbles the fish blew. Then use circle attribute blocks to trace and draw 4 more bubbles. Describe the shapes. Write how many sides and vertices.

Answer:

Explanation:

The Fish blow bubbles in the shape of circles and finished drawing the bubbles the fish blew

Then i used circle attribute blocks to trace

I drew 4 more bubbles

The shapes are circles and they have no sides and no corners.

**See and Show**

Circles are two-dimensional shapes. They are closed and round. They do not have sides and vertices.

**Write how many sides and vertices.**

Question 1.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A circle is a closed shape that has no sides and no vertices.

Question 2.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A circle is a closed shape that has no sides and no vertices.

Question 3.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A ball is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

Question 4.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A button is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

**Talk Math** What objects in your classroom are the shape of a circle?

Answer:

An eraser, a stool in my class are round in shape.

**On My Own**

**Write how many sides and vertices.**

Question 5.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A circle is a closed shape that has no sides and no vertices.

Question 6.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A circle is a closed shape that has no sides and no vertices.

Question 7.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A button is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

Question 8.

___________ sides

___________ vertices

Answer:

0 sides

0 vertices

Explanation:

A pillow is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

**Circle the objects that match the first shape.**

Question 9.

Answer:

Explanation:

I drew a circle around the objects that match with the first shape.

**Circle the closed shapes.**

Question 10.

Answer:

Explanation:

I drew a circle around the closed shapes.

**Problem Solving**

Question 11.

I am a two-dimensional shape that has no sides or vertices. Write the name of the shape. Draw a picture of the shape.

Answer:

Explanation:

0 sides

0 vertices

A circle is a closed shape that has no sides and no vertices.

Question 12.

Draw a picture of a two-dimensional shape. Write how many sides. Write how many vertices.

_____________ sides

_____________ vertices

Answer:

Explanation:

4 sides

4 vertices

A rectangle is a closed shape that has 4 sides and 4 vertices.

**HOT Problem** Majid described this shape as a two-dimensional shape with 4 sides. Majid is wrong. Make it right.

Answer:

No, Masjid is wrong as a circle is a shape that has no sides and no vertices

A rectangle is a shape that has 4 sides.

### McGraw Hill My Math Grade 1 Chapter 9 Lesson 3 My Homework Answer Key

**Practice**

**Write how many sides and vertices.**

Question 1.

_____________ sides

_____________ vertices

Answer:

0 sides

0 vertices

Explanation:

A circle is a closed shape that has no sides and no vertices.

Question 2.

_____________ sides

_____________ vertices

Answer:

0 sides

0 vertices

Explanation:

A circle is a closed shape that has no sides and no vertices.

Question 3.

_____________ sides

_____________ vertices

Answer:

0 sides

0 vertices

Explanation:

A button is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

Question 4.

_____________ sides

_____________ vertices

Answer:

0 sides

0 vertices

Explanation:

A DVD is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

Question 5.

_____________ sides

_____________ vertices

Answer:

0 sides

0 vertices

Explanation:

A smiley is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

Question 6.

_____________ sides

_____________ vertices

Answer:

0 sides

0 vertices

Explanation:

A playground is in the shape of a circle

A circle is a closed shape that has no sides and no vertices.

Question 7.

Amad drew the shapes below.

How many shapes have 4 sides? ___________ shapes

How many shapes have 0 vertices? ____________ shapes

Answer:

5 shapes have 4 sides

2 shapes have 0 vertices

Explanation:

There are 5 shapes that have 4 sides in the given shape and 2 shapes have 0 vertices in the given shapes.

**Draw and write the name of the shape**.

Question 8.

I am a two-dimensional shape that has no straight sides. I am round. What shape am I?

Answer:

Explanation:

0 sides

0 vertices

A circle is a closed shape that has no straight sides and s round.

**Vocabulary Check**

**Circle the shape that shows the vocabulary word.**

Question 9.

Circle

Answer:

Explanation:

I drew a circle around the object that is circle in shape.

**Math at Home** Cut several different sized circles out of paper. Have your child create a picture by gluing the circles onto another sheet of paper.

Answer: