# Into Math Grade 2 Module 21 Lesson 4 Answer Key Sort Two-Dimensional Shapes by Sides and Angles

We included HMH Into Math Grade 2 Answer Key PDF Module 21 Lesson 4 Sort Two-Dimensional Shapes by Sides and Angles to make students experts in learning maths.

## HMH Into Math Grade 2 Module 21 Lesson 4 Answer Key Sort Two-Dimensional Shapes by Sides and Angles

I Can compare two-dimensional shapes by the number of sides and angles.

How can you show Fiona’s shapes.

Read the following: Fiona wants to draw four shapes. Each shape has a different number of sides and angles. V4,at shapes can she draw? Have partners compare their work.

Build Understanding

Question 1.
Graham is sorting shapes. He wants to draw shapes with fewer than 5 sides. What shapes does Graham draw?
A. Draw shapes with fewer than 5 sides.
The shapes that are fewer than 5 sides are
Rectangle
Square
Triangle
Pentagon
Hexagon

B. Look at your drawings. Name each shape and write the number of sides.
pentagon
triangle
shape: _________ _______ sides
shape: _________ _______ sides
Hexagon has six sides
Pentagon has five sides
Quadrilateral has four sides
Triangle has three sides

C. What is alike about these shapes?
Answer: Rectangle and square are like with the same number of sides.

Turn and Talk Is it possible to draw a shape with 7 angles? How many sides would it have? Explain.
Answer: Yes we can a shape with 7 angles that is known as heptagon.

Step It Out

Question 1.
Tonya is sorting shapes. She wants to find shapes with more than 4 angles. Which shapes match the rule?

A. List the number of sides for each shape.
triangle __________ sides
pentagon __________ sides
hexagon __________ sides
triangle – 3 sides
quadrilateral – 4 sides
pentagon – 5 sides
hexagon – 6 sides

B. List the shapes with more than 4 sides.
Answer: The name of the shapes with more than 4 sides is pentagon and hexagon.

C. List the shapes with more than 4 angles.
Answer: The name of the shapes with more than 4 angles is pentagon and hexagon.

Check Understanding

List the shapes that match the rule.
hexagon
pentagon
triangle

Question 1.
Shapes with more than 3 angles
Answer: Shapes with more than 3 angles is quadrilateral, pentagon, and hexagon.

Question 2.
Shapes with fewer than 6 sides
Answer: Shapes with fewer than 6 sides is the triangle, quadrilateral, and pentagon.

Question 3.
Shapes with more than 5 sides
Answer: The shape with more than 5 sides is the hexagon.

Use Repeated Reasoning Frances writes these rules. Draw two shapes that match each rule.

Question 4.
Shapes with fewer than 5 angles
Answer: Shapes with fewer than 5 angles are the triangle, quadrilateral, and pentagon.

Question 5.
Shapes with more than 3 sides
Answer: Shapes with more than 3 sides are quadrilateral, pentagon, and hexagon.

Attend to Precision Circle the shapes that match the rule.

Question 6.
Shapes with fewer than 6 angles

The list of the shapes with fewer than 6 angles are square, pentagon and triangle.

Question 7.
Shapes with more than 4 angles