To classify the triangles by their sides, we need to determine whether each triangle is
equilateral,
isosceles, or
scalene. Here's a brief explanation of each type:
1.
Equilateral Triangle: All three sides are equal.
2.
Isosceles Triangle: At least two sides are equal.
3.
Scalene Triangle: All three sides are different.
Now, let's analyze each triangle in the image:
Row 1:
1.
Triangle 1: All sides appear to be different.
-
Classification: Scalene
2.
Triangle 2: All sides appear to be equal.
-
Classification: Equilateral
3.
Triangle 3: Two sides appear to be equal.
-
Classification: Isosceles
Row 2:
4.
Triangle 4: All sides appear to be equal.
-
Classification: Equilateral
5.
Triangle 5: Two sides appear to be equal.
-
Classification: Isosceles
6.
Triangle 6: All sides appear to be different.
-
Classification: Scalene
Row 3:
7.
Triangle 7: All sides appear to be different.
-
Classification: Scalene
8.
Triangle 8: Two sides appear to be equal.
-
Classification: Isosceles
9.
Triangle 9: All sides appear to be equal.
-
Classification: Equilateral
Row 4:
10.
Triangle 10: Two sides appear to be equal.
-
Classification: Isosceles
11.
Triangle 11: All sides appear to be different.
-
Classification: Scalene
12.
Triangle 12: All sides appear to be equal.
-
Classification: Equilateral
Final Classification:
1. Scalene
2. Equilateral
3. Isosceles
4. Equilateral
5. Isosceles
6. Scalene
7. Scalene
8. Isosceles
9. Equilateral
10. Isosceles
11. Scalene
12. Equilateral
Boxed Answer:
\[
\boxed{
\begin{array}{ccc}
\text{Scalene} & \text{Equilateral} & \text{Isosceles} \\
\text{Equilateral} & \text{Isosceles} & \text{Scalene} \\
\text{Scalene} & \text{Isosceles} & \text{Equilateral} \\
\text{Isosceles} & \text{Scalene} & \text{Equilateral} \\
\end{array}
}
\]
Parent Tip: Review the logic above to help your child master the concept of type of triangle worksheet.
