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Geometry Shape Classification

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Geometry Shape Classification

Geometry Shape Classification

Geometric shapes including triangles, squares, and circles

📐 Part 1: 2D Shape Classification

1. Circle the correct classification for each shape description:

A shape with 3 sides and 3 vertices:

Triangle (tapatoru)

Quadrilateral

Pentagon

Hexagon

A shape with 4 equal sides and 4 right angles:

Rectangle

Square (tapawhā)

Rhombus

Trapezium

2. Check all the properties that describe an equilateral triangle:

All sides are equal length

All angles are equal

Has 3 vertices

Has 4 sides

Each angle measures 60°

📏 Part 2: Angle Classification

3. Match each angle type with its correct measurement range:
1. Right angle
2. Acute angle
3. Obtuse angle
4. Straight angle
A. Less than 90°
B. Exactly 90°
C. Between 90° and 180°
D. Exactly 180°
4. Fill in the blanks about angle relationships:

Angles on a straight line add up to _______ degrees.

Angles at a point add up to _______ degrees.

Vertically opposite angles are _____________.

🎲 Part 3: 3D Shape Properties

5. Complete the table for 3D shapes:

Cube: Faces: _____ Edges: _____ Vertices: _____

Triangular prism: Faces: _____ Edges: _____ Vertices: _____

Square pyramid: Faces: _____ Edges: _____ Vertices: _____

6. Circle the correct answer:

What shape are the faces of a triangular prism?

All triangles

All rectangles

2 triangles and 3 rectangles

3 triangles and 2 rectangles

✏️ Part 4: Drawing and Design

7. Draw and label the following shapes:

An isosceles triangle:

A quadrilateral with one pair of parallel sides:

8. Design a pattern using at least 3 different polygons:

🤔 Part 5: Problem Solving

9. Explain your reasoning:

Why can't a triangle have two obtuse angles? Use your knowledge of angle relationships to explain.

10. Real-world connections:

Name three objects in your classroom or home that contain right angles. Explain where you see the right angles.

11. Challenge question:

If you were building a bridge using triangular supports, which type of triangle (equilateral, isosceles, or scalene) would you choose and why?

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