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Published byNancy Carter Modified over 4 years ago

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TRIANGLES AND TYPES OF TRIANGLES

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A triangle has three sides

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A triangle has three angles

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TYPES OF TRIANGLES Two Ways On the basis of angles On the basis of sides

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On the basis of ANGLES Three types Acute triangle Right triangle Obtuse triangle

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Acute angled triangle A triangle with all acute angles is called an ACUTE TRIANGLE.

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Right angled triangle A triangle with one right angle is called a RIGHT TRIANGLE.

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Obtused angled triangle A triangle with one obtuse angle is called an OBTUSE TRIANGLE.

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On the basis of sides Three types Equilateral triangle Isosceles triangle Scalene triangle

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Equilateral triangle A triangle with all equal length sides is called an equilateral triangle.

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Isosceles triangle A triangle with 2 sides that are the same length is called an isosceles triangle.

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Scalene triangle A triangle with all sides of different lengths is called a scalene triangle.

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Recap A triangle with all equal length sides is called… A triangle with all sides of different lengths is called… A triangle with one 90° angle is called… A triangle with 3 angles that are less than 90° is called…

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