Scholars | 6th Grade |Maths | Traingles and Properties | Self Assessment 01

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Scholars | 6th Grade |Maths | Traingles and Properties | Self Assessment 01

Self-Assessment Quiz: Triangles and Their Properties

Self-Assessment Quiz: Triangles and Their Properties

1. What type of triangle has all angles less than 90 degrees?

A) Acute-angled triangle
B) Right-angled triangle
C) Obtuse-angled triangle
D) Isosceles right-angled triangle

2. What is the condition for a triangle to be classified as a right-angled triangle?

A) The sum of the squares of two sides is equal to the square of the third side
B) All angles are less than 90 degrees
C) One angle is exactly 90 degrees
D) One angle is greater than 90 degrees

3. Which triangle has one angle greater than 90 degrees?

A) Acute-angled triangle
B) Right-angled triangle
C) Obtuse-angled triangle
D) Isosceles right-angled triangle

4. What is the sum of the angles in any triangle?

A) 90 degrees
B) 120 degrees
C) 180 degrees
D) 360 degrees

5. If a triangle has angles measuring 45º, 45º, and 90º, what type of triangle is it?

A) Acute-angled triangle
B) Right-angled triangle
C) Obtuse-angled triangle
D) Isosceles right-angled triangle

6. Which type of triangle can never have an angle of 90 degrees?

A) Equilateral triangle
B) Scalene triangle
C) Isosceles triangle
D) Obtuse-angled triangle

7. In a triangle, if one angle is 125º and another is 30º, what type of triangle is formed?

A) Acute-angled triangle
B) Right-angled triangle
C) Obtuse-angled triangle
D) Isosceles right-angled triangle

8. What is the classification of a triangle with angles measuring 60º, 60º, and 60º?

A) Acute-angled triangle
B) Right-angled triangle
C) Obtuse-angled triangle
D) Equilateral triangle

9. If a triangle has sides measuring 5 cm, 12 cm, and 13 cm, what type of triangle is it?

A) Acute-angled triangle
B) Right-angled triangle
C) Obtuse-angled triangle
D) Isosceles triangle

10. In triangle XYZ, if ∠X = 90º and ∠Y = 45º, what type of triangle is formed?

A) Acute-angled triangle
B) Right-angled triangle
C) Obtuse-angled triangle
D) Isosceles right-angled triangle
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