All the solutions provided in **McGraw Hill My Math Grade 2 Answer Key PDF Chapter 12 Lesson 1 Two-Dimensional Shapes **will give you a clear idea of the concepts.

## McGraw-Hill My Math Grade 2 Answer Key Chapter 12 Lesson 1 Two-Dimensional Shapes

**Explore and Explain**

**Teacher Directions:** Use small attribute blocks. Trace and identify each shape. Draw a line from each shape to its name.

Answer:

**See and Show**

A two-dimensional shape is a shape with only length and width.

**Circle the shapes that match the name.**

Question 1.

parallelogram

Answer:

Explanation:

Opposite sides are parallel in a parallelogram

A two-dimensional shape is a shape with only length and width.

Question 2.

triangle

Answer:

Explanation:

A triangle has 3 sides and 3 angles

A two-dimensional shape is a shape with only length and width.

**Write the name of the shape. Circle the shape that matches.**

Question 3.

Answer:

Explanation:

The hexagon has 6 sides and 6 angles.

A two-dimensional shape is a shape with only length and width.

**Talk Math**

What is the difference between a pentagon and a hexagon? How are they alike?

Answer:

Pentagon has 5 sides and a hexagon has 6 sides

**On My Own**

**Circle the shapes that match the name.**

Question 4.

trapezoid

Answer:

Explanation:

a flat geometric figure with four sides but with only two sides parallel

A two-dimensional shape is a shape with only length and width.

Question 5.

hexagon

Answer:

Explanation:

A hexagon has 6 sides and 6 angles.

A two-dimensional shape is a shape with only length and width.

Question 6.

triangle

Answer:

Explanation:

A triangle has 3 sides and 3 angles

A two-dimensional shape is a shape with only length and width.

Question 7.

pentagon

Answer:

Explanation:

A pentagon has 5 sides and 5 angles

A two-dimensional shape is a shape with only length and width.

**Write the name of the shape. Circle the shape that matches.**

Question 8.

Answer:

Explanation:

A triangle has 3 sides and 3 angles

A two-dimensional shape is a shape with only length and width.

Question 9.

Answer:

Explanation:

A hexagon has 6 sides and 6 angles.

A two-dimensional shape is a shape with only length and width.

**Circle the shape that does not belong in each group.**

Question 10.

Answer:

Explanation:

A triangle has 3 sides and 3 angles

In the given shapes triangle is different

A two-dimensional shape is a shape with only length and width.

Question 11.

Answer:

Explanation:

A hexagon has 6 sides and 6 angles.

In the given shapes Hexagon is different

A two-dimensional shape is a shape with only length and width.

**Problem Solving**

Question 12.

Identify the shape of each sign.

Answer:

Explanation:

A triangle has 3 sides and 3 angles

A rectangle has 4 sides and 4 angles.

A two-dimensional shape is a shape with only length and width.

Question 13.

How many of each shape do you see?

Answer:

A two-dimensional shape is a shape with only length and width.

triangles 4

hexagons 1

rectangles 2

squares 5

pentagons 1

circles 0

**Write Math**

Give examples of objects in your school that look like triangles and squares.

Answer:

Black board in rectangle

Set square in shape of a triangle

### McGraw Hill My Math Grade 2 Chapter 12 Lesson 1 My Homework Answer Key

**Practice**

**Circle the shapes that match the name.**

Question 1.

rectangle

Answer:

Explanation:

A rectangle has 4 sides and 4 angles

A two-dimensional shape is a shape with only length and width.

Question 2.

triangle

Answer:

Explanation:

A triangle has 3 sides and 3 angles

A two-dimensional shape is a shape with only length and width.

Question 3.

trapezoid

Answer:

Explanation:

a flat geometric figure with four sides but with only two sides parallel

A two-dimensional shape is a shape with only length and width.

Question 4.

hexagon

Answer:

Explanation:

A hexagon has 6 sides and 6 angles.

A two-dimensional shape is a shape with only length and width.

**Write the name of the shape. Circle the shape that matches.**

Question 5.

Answer:

Explanation:

A rectangle has 4 sides and 4 angles

Opposite sides are equal.

A two-dimensional shape is a shape with only length and width.

Question 6.

Answer:

Explanation:

A pentagon has 5 sides and 5 angles.

A two-dimensional shape is a shape with only length and width.

Question 7.

Jack cut out a shape to glue onto a picture. The shape looked like an ice cream cone. What shape did he cut out?

Answer:

Triangle

Explanation:

The shape of ice cream look like a triangle

A two-dimensional shape is a shape with only length and width.

**Vocabulary Check**

Question 8.

Circle the hexagons.

Answer:

Explanation:

A hexagon has 6 sides and 6 angles.

A two-dimensional shape is a shape with only length and width.

**Math at Home**

Point to two-dimensional shapes around your house (triangles, squares, rectangles, hexagons, and pentagons) arid have your child identify each shape.

Answer: