classification of triangles
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The document discusses the classification of triangles based on the lengths of their sides and measures of their angles. Triangles can be classified as scalene, isosceles, or equilateral depending on whether they have no sides, two sides, or all three sides of equal length. They can also be classified as acute, right, obtuse, or equiangular based on the measures of their angles. Several examples of different types of triangles are provided.
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classification of triangles
- 5. Triangles can be classified according to number of congruent sides. Similar markings indicate congruent parts.
- 6. No two sides are congruent
- 7. At least two sides are congruent
- 8. All sides are congruent
- 9. Triangles can also be classified according to their angles
- 10. All angles are acute. 72° 48°60°
- 11. One angle is a right angle. 50° 90° 40°
- 12. One angle is obtuse. 128° 30° 22°
- 13. All angles are congruent. 60° 60° 60°
- 14. Classification of triangle Scalene triangle One angle is obtuse Acute triangle Three sides are congruent Atleast two side are congruent Right triangle
- 15. 1. 30°, 60°, 90° 2. 5 cm, 10 cm, 5 cm 3. 120°, 30°, 30° 4. 20m,20m,20m 5. 60°, 60°, 60° 6. 100°, 35°, 45° 7. 1 ft, 5 ft,3 ft 8. 8 inches, 8 inches, 8 inches
- 16. 1. Isosceles, acute 2. Isosceles, right 3. Isosceles, obtuse 4. Scalene, obtuse 5. Scalene, acute 6. Isosceles, scalene 7. Scalene , right 8. Equilateral, obtuse 9. Equiangular, acute 10. Equilateral, right