2D Shapes
Start Practice

What Are Shapes?

Shapes are the outlines of objects.

Shapes are all around us.

This paper has a shape. It's called a rectangle!

Shapes can be 2D or 3D.

2D shapes are flat, like rectangles.

Let's learn the names of a few 2D, or flat, shapes.

Triangles

A triangle has 3 sides.

Can you think of where you might find triangles in real life?

Some examples are a pizza slice, a warning sign, and a sandwich.

Squares

A square has four equal sides.

Can you think of squares in real life?

Tiles on the floor, a square window, and squares on a chess board are all squares.

In fact, the whole chessboard is a square!

Rectangles

What happens when you stretch out a square? You get a rectangle.

A rectangle has 4 sides. Two sides are longer, and two other sides are shorter.

What are some rectangles around you? 🤔

A phone, letter, and an apartment block are rectangles.

The stamp on the letter is a rectangle too!

Did you know that all squares are actually rectangles too? 😃

That's true!

Shapes with More Than 4 Sides

A pentagon has 5 sides.

A hexagon has 6 sides.

A heptagon has 7 sides.

An octagon has 8 sides.

All the shapes above are called polygons.

A polygon is any flat shape with straight sides.

A circle has no straight sides.

Circles are not polygons because they don't have straight sides.

Well done! 😺

Tip: You don't have to capitalize the names of shapes unless they're at the beginning of a sentence.

👉 So we write square ✅, not Square ❎.

Lesson Streak

0 days
W
T
F
S
S
M
T
Complete a practice every day to build your streak
Start Practice
Complete the practice to earn 1 Create Credit

1,000 Create Credits is worth \$1 in real AI compute time.

1 Create Credit is enough to get 1 question answered, or to generate 1 image from text, in the tools tab.
Teachers:
Assign to students
Duplicate
Edit Questions
Edit Article
Assign
Preview Questions
Edit
Duplicate
{"found_math": false, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 0, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0}