MathIsimple

Geometry

Explore 2D and 3D shapes, angles, and symmetry!

2nd Grade
~30 min
🎮 Interactive Activity: Shape Explorer
Triangle
Sides: 3 | Vertices: 3
1. 2D Shapes (Polygons)

📐 Polygons are Closed Shapes

A polygon is a 2D shape with straight sides. The number of sides equals the number of angles!

Triangle
3 sides, 3 angles
Square
4 equal sides
Pentagon
5 sides, 5 angles
Hexagon
6 sides, 6 angles

📝 Example: Identifying Polygons

Question: What polygon has 8 sides?

8 sides

Solution:

Step 1: Count the sides → 8 sides

Step 2: "Octa" means 8 in Greek

Answer: This is an Octagon (like a STOP sign!)

2. 3D Shapes
3. Symmetry
4. Understanding Angles
5. Real-World Applications

Practice Time!

Practice Quiz
10
Questions
0
Correct
0%
Score
1
How many sides does a hexagon have?
2
Which shape has 5 sides?
3
A cube has how many faces?
4
Which is a 3D shape?
5
How many vertices does a triangle have?
6
A square has how many lines of symmetry?
7
Which angle is 90 degrees?
8
A cone has which shape base?
9
Two halves that match exactly is called?
10
How many edges does a cube have?