# Into Math Grade 2 Module 21 Lesson 2 Answer Key Identify and Draw Two-Dimensional Shapes

We included HMH Into Math Grade 2 Answer Key PDF Module 21 Lesson 2 Identify and Draw Two-Dimensional Shapes to make students experts in learning maths.

## HMH Into Math Grade 2 Module 21 Lesson 2 Answer Key Identify and Draw Two-Dimensional Shapes

I Can describe and compare the attributes of two-dimensional shapes.

How can you show the two-dimensional shapes Luis draws?

Read the following: Luis is drawing his favorite shapes. He wants to include a shape with 3 sides and a shape with H sides. What shapes can Luis draw? Have partners discuss how their answers are alike and different.

Build Understanding

Question 1.
Jon is making a book of shapes. She draws triangles and quadrilaterals. How can she describe the shapes?

Connect to Vocabulary

A two-dimensional shape with 4 sides is a quadrilateral. One of the lines that forms a two-dimensional shape is a side.
A vertex is the point where two sides meet.

A. How can she describe these two-dimensional shapes by the number of sides?

triangle: ________ sides

triangle: 3 sides

Explanation:
Triangle: A triangle is a regular polygon with three sides.

B. How can she describe these two-dimensional shapes by the number of vertices?

triangle: ________ sides

triangle: three sides

A triangle has three vertices.

Turn and Talk Compare the number of sides and vertices in each shape. What do you see?
The number of sides and vertices in a triangle is the same.
The number of sides and vertices in a quadrilateral is the same.

Question 2.
Jana adds a pentagon and a hexagon to her book of shapes. How can she describe the shapes?
Connect to Vocabulary

A two-dimensional shape with 5 sides is a pentagon.

A two-dimensional shape with 6 sides is a hexagon.

A. How can she describe these two-dimensional shapes by the number of sides?

pentagon: ________ sides

hexagon: ________ sides

pentagon: 5 sides

hexagon: 6 sides

B. How can she describe these two-dimensional shapes by the number of vertices?

pentagon: _________ vertices

hexagon: __________ vertices

pentagon: 5 vertices

hexagon: 6 vertices

C. What shape is a baseball home plate?
hexagon
pentagon

The above shape has 5 sides and 5 vertices so the name of the shape is a pentagon.
Thus the baseball home plate is a pentagon.

D. The white parts of a soccer ball are shaped like a hexagon. How many sides does that part have?
_________ sides
Given,
The white parts of a soccer ball are shaped like a hexagon.
A hexagon is a two-dimensional polygon with 6 sides.

Turn and Talk Compare the number of sides and vertices in each shape. What do you see?
A hexagon is a regular polygon that has 6 sides and 6 vertices.

Question 3.
Jada draws a shape that has 5 sides and 5 vertices Q Draw a shape like Jada’s shape.

A. Draw a shape like Jada’s shape.

B. What is the name of this shape?
The shape that has 5 sides and 5 vertices is called a pentagon.

hexagon
pentagon

Question 4.
Jada draws another shape. It has 6 sides and 6 vertices.
A. Draw a shape like Jada’s shape.

B. What is the name of this shape?
The shape that has 6 sides and 6 vertices is called a hexagon.

Check Understanding

Question 1.
Neve has a quadrilateral. How many vertices does her shape have?
_________ vertices
Given,
A quadrilateral is a polygon with four sides and four vertices.
Thus her shape has 4 vertices.

Question 2.
Draw a shape with 3 sides and 3 vertices.

The shape with 3 sides and 3 vertices is called a triangle.

Question 3.
Kyle sees a sign that has 3 sides. What shape is the sign? What else do you know about the sign? Solve and explain.

The shape of the above sign is a triangle.

Question 4.
Reason Which shape has more vertices, a hexagon or a pentagon? Explain.
The shape that has 6 sides and 6 vertices is called a hexagon.
The shape that has 5 sides and 5 vertices is called a pentagon.
A hexagon has more vertices than a pentagon.

Question 5.
Use Repeated Reasoning Roma’s shape has 4 sides. It is not a square or a rectangle. Draw the shape.
Roma’s shape has 4 sides.

A shape neither square nor rectangle is a quadrilateral.

Question 6.
Jan’s shape has 6 sides and 6 vertices. Draw and name his shape.
Given,
Jan’s shape has 6 sides and 6 vertices.
The shape that has 6 sides and 6 vertices is called a hexagon.

Use Structure Pedro draws this picture of a house.

Question 7.
How many sides and vertices does it have?

________ sides
_________ vertices
5 sides
5 vertices
The shape that has 5 sides and 5 vertices is called a pentagon.

Question 8.
Name the shape
Answer: The name of the shape is a pentagon.

Question 9.
Attend to Precision Pedro’s friend draws a shape with 4 sides and 4 vertices.
Name the shape.

The shape with 4 sides and 4 vertices is a quadrilateral.

Question 10.
Reason Mark says that if you know the number of vertices in a shape, you can find the number of sides. Is Mark correct? Explain how you know.
Answer: Yes, if you know the number of vertices in a shape, you can find the number of sides.
Example: If the number of vertices of a shape is 6 then the name of the shape is hexagon with 6 sides.

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