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.
Spark Your Learning
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.
Answer:
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.
Answer:
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
quadrilateral
triangle
shape: _________ _______ sides
shape: _________ _______ sides
Answer:
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
quadrilateral __________ sides
pentagon __________ sides
hexagon __________ sides
Answer:
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
quadrilateral
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.
On Your Own
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
Answer:
The list of the shapes with fewer than 6 angles are square, pentagon and triangle.
Question 7.
Shapes with more than 4 angles
Answer:
The list of shapes with more than 4 angles is pentagon and hexagon.
I’m in a Learning Mindset!
How do I help my partner understand how to sort two-dimensional shapes by sides and angles?
Answer: You can sort two-dimensional shapes by sides and angles by counting the number of sides and angles shown in the image.