# Classifying Triangles (Grade 4)

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## Classifying Triangles

1.

What kind of triangle is shown?

- Acute
- Obtuse
- Right

2.

What kind of triangle is shown?

- Acute
- Obtuse
- Right

3.

The angle measures of a triangle are [math]30deg, 60deg, 90deg[/math]. Which of the following best classifies the triangle?

- Acute
- Obtuse
- Right

4.

The angle measures of a triangle are [math]85deg, 38deg, 57deg[/math]. What kind of triangle is it?

- Acute
- Obtuse
- Right

5.

Based on side length, which of the following best classifies the triangle below?

- Scalene
- Isosceles
- Equilateral

6.

Based on side length, which of the following best classifies the triangle below?

- Scalene
- Isosceles
- Equilateral

7.

The sides of a triangle measure 6 m, 7 m, and 4 m. Which type of triangle is described?

- Scalene
- Isosceles
- Equilateral

8.

The sides of a triangle measure 3 cm, 2 cm, and 3 cm. Which type of triangle is described?

- Scalene
- Isosceles
- Equilateral

9.

Elijah cuts out a triangle from a piece of cardboard as shown below. Which of the following best describes Elijah's triangle?

- Acute and scalene
- Obtuse and scalene
- Acute and isosceles
- Obtuse and isosceles

10.

Giselle constructs the triangle below using a compass and straight edge. Two of the sides measure the same length and all of the angles measure less than [math]90deg[/math]. Which of the following best describes Giselle's triangle?

- acute and equilateral
- right and equilateral
- acute and isosceles
- right and isosceles

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