# Texas Go Math Kindergarten Lesson 17.2 Answer Key Identify Triangles

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## Texas Go Math Kindergarten Lesson 17.2 Answer Key Identify Triangles

Essential Question
How can you identify, sort, and describe circles?

Explore Explanation:
a triangle is a three-sided polygon that consists of three edges and three vertices.
3 sides and 3 corners.

Directions
Use your finger to trace around the triangle. Talk about the number of straight sides and the number of vertices. Draw an arrow pointing to another vertex. Use a pencil or crayon to trace around the triangle.

Share and Show

Question 1. A triangle is a three-sided polygon that consists of three edges and three vertices.
3 sides and 3 corners.

Question 2.  Explanation:
A triangle is a three-sided polygon that consists of three edges and three vertices.
3 sides and 3 corners.

Directions
1. Place a counter on each corner, or vertex. Write how many corners, or vertices. 2. Trace around the sides. Write how many sides.

Question 3.  Explanation:
Triangles are colored
A triangle has 3 sides and 3 vertices

Directions
3. Color the triangles in the picture.

Home Activity

• Have your child show you an object that is shaped like a triangle.

Problem Solving

Question 4.  Explanation:
Colored the triangles and crossed the shapes that are not triangles
triangles are colored in blue.

Question 5.  Explanation:
A triangle has 3 sides and 3 vertices
The rectangle has 4 sides and 4 vertices
so, marked the second shape.

Directions
4. Sort the shapes. Color the shapes that are triangles. Mark an X on the shapes that are not triangles. 5. Choose the correct answer. Which shape has three sides?

### Texas Go Math Kindergarten Lesson 17.2 Homework and Practice

Question 1.  Explanation:
A triangle has 3 sides and 3 vertices
colored all the triangles in red.

Directions
1. Color the triangles in this picture.

Texas Test Prep

Lesson Check

Question 2.  Explanation:
A triangle has 3 sides and 3 vertices
the first shape has 4 sides and 4 vertices
so, marked the first shape.

Question 3.  Explanation:
A triangle has 3 sides and 3 vertices
so, marked the second shape.

Question 4.  