Identify the Type of Triangle — Printable Math Worksheet - Free Printable

Let's solve the problem step by step.

We are asked to identify each triangle as scalene, isosceles, or equilateral based on the side lengths given.

Definitions:

- Equilateral triangle: All three sides are equal.
- Isosceles triangle: Two sides are equal.
- Scalene triangle: All three sides are different (no sides equal).

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Now, let’s analyze each triangle:

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1. Top-left triangle:
- Sides: 3 in, 3 in, 3 in
- All sides are equal → Equilateral

✔ Answer: Equilateral

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2. Top-right triangle:
- Sides: 5 cm, 4 cm, 2 cm
- All sides are different → Scalene

✔ Answer: Scalene

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3. Middle-left triangle:
- Sides: 3 m, 4 m, 5 m
- All sides are different → Scalene

✔ Answer: Scalene

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4. Middle-right triangle:
- Sides: 4 in, 4 in, 3 in
- Two sides are equal (4 in), one is different → Isosceles

✔ Answer: Isosceles

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5. Bottom-left triangle:
- Sides: 4 in, 3 in, 3 in
- Two sides are equal (3 in), one is different → Isosceles

✔ Answer: Isosceles

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6. Bottom-right triangle:
- Sides: 2 in, 2 in, 2 in
- All sides are equal → Equilateral

✔ Answer: Equilateral

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Final Answers:

1. Equilateral
2. Scalene
3. Scalene
4. Isosceles
5. Isosceles
6. Equilateral

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✔ Summary:
- Equilateral: Triangles 1 and 6
- Isosceles: Triangles 4 and 5
- Scalene: Triangles 2 and 3

You can now fill in the blanks accordingly on the worksheet!