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TRIANGLES AND TYPES OF TRIANGLES

TRIANGLES AND TYPES OF TRIANGLES. We get a TRIANGLE by joining three non collinear points . What is a TRIANGLE ?. A closed figure formed by joining three line segments is called a TRIANGLE . A triangle has three sides . A triangle has three angles. TYPES OF TRIANGLES. Two Ways

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TRIANGLES AND TYPES OF TRIANGLES

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  1. TRIANGLES AND TYPES OF TRIANGLES

  2. We get a TRIANGLE by joining three non collinear points .

  3. What is a TRIANGLE ? • A closed figure formed by joining three line segments is called a TRIANGLE .

  4. A triangle has three sides

  5. A triangle has three angles

  6. TYPES OF TRIANGLES Two Ways • On the basis of angles • On the basis of sides

  7. On the basis of ANGLES Three types • Acute angled triangle • Right angled triangle • Obtuse angled triangle

  8. Acute angled triangle • A triangle whose all the angles are acute is called an ACUTE ANGLED TRIANGLE .

  9. Right angled triangle • A triangle in which one of the angle is right angle is called RIGHT ANGLED TRIANGLE.

  10. Obtused angled triangle • A triangle in which one of the angle is obtuse angle is called OBTUSED ANGLED TRIANGLE .

  11. On the basis of sides Three types • Equilateral triangle • Isosceles triangle • Scalene triangle

  12. Equilateral triangle • A triangle whose all the sides are of equal length is called equilateral triangle.

  13. Isosceles triangle • A triangle whose any two sides are of equal measure is called scalene triangle.

  14. Scalene triangle • A triangle whose no two sides are of equal measure is called scalene triangle.

  15. Recap • A closed figure formed by joining three non collinear points is called • A triangle whose all the sides are of equal length is called • A triangle whose no two sides are of equal length is called • A triangle whose one angle is 90 degree is called • A triangle whose all the angles are less than 90 degree is called

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