Classifying Triangles worksheet with instructions to color different types of triangles by shape.

You're working on a worksheet titled “Classifying Triangles”. The task asks you to:

> - Color the equilateral triangles blue.
> - Color the isosceles triangles green.
> - Color the scalene triangles red.

Let’s break down what each type of triangle means, then classify each one in your image (labeled a–l).

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🔷 Triangle Classification Definitions:

- Equilateral Triangle: All three sides are equal in length. Also, all angles are 60°. Visually, it looks perfectly symmetrical — often upright or tilted, but all sides appear the same.

- Isosceles Triangle: At least two sides are equal in length. Often has a “pointy top” with two equal sides sloping down. Even if it looks like only two sides match, that’s enough.

- Scalene Triangle: All three sides have different lengths. No symmetry — looks lopsided or irregular.

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✔ Step-by-Step Classification for Each Triangle:

We’ll go through each labeled triangle and decide its type based on visual inspection (since no measurements are given, we rely on appearance).

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#### ➤ a. — Scalene (red)
Looks very uneven — all sides appear different. No two sides look equal.

#### ➤ b. — Equilateral (blue)
Perfectly symmetrical, all sides look equal. Classic equilateral shape.

#### ➤ c. — Isosceles (green)
Two sides look equal (the left and right ones), base is shorter. Typical isosceles.

#### ➤ d. — Isosceles (green)
Right triangle with two legs appearing equal — this is an isosceles right triangle.

#### ➤ e. — Isosceles (green)
Base is longer, two sides look equal — classic isosceles.

#### ➤ f. — Scalene (red)
Very skewed — all sides look different.

#### ➤ g. — Equilateral (blue)
Rotated, but still all sides appear equal. It’s just turned sideways.

#### ➤ h. — Isosceles (green)
Tall and narrow — two sides look equal (left and right), base is shorter.

#### ➤ i. — Equilateral (blue)
Upright and symmetrical — all sides equal.

#### ➤ j. — Scalene (red)
Wide and slanted — no two sides look equal.

#### ➤ k. — Equilateral (blue)
Large and upright — all sides look equal.

#### ➤ l. — Scalene (red)
Very stretched and uneven — all sides look different.

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🎨 Final Coloring Instructions:

| Label | Type | Color |
|-------|--------------|-------|
| a | Scalene | Red |
| b | Equilateral | Blue |
| c | Isosceles | Green |
| d | Isosceles | Green |
| e | Isosceles | Green |
| f | Scalene | Red |
| g | Equilateral | Blue |
| h | Isosceles | Green |
| i | Equilateral | Blue |
| j | Scalene | Red |
| k | Equilateral | Blue |
| l | Scalene | Red |

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✔ Summary:

- Blue (Equilateral): b, g, i, k → 4 triangles
- Green (Isosceles): c, d, e, h → 4 triangles
- Red (Scalene): a, f, j, l → 4 triangles

This makes sense — the worksheet is balanced!

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📌 Tip: In real geometry, every equilateral triangle is *also* isosceles (since it has at least two equal sides). But for elementary worksheets like this, they usually treat them as separate categories — so equilateral gets its own color (blue), and isosceles means “exactly two equal sides.”

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✔ You’re all set! Just color according to the table above. Happy coloring! 🖍️