POWER POINT PRESENTATION ON TRIANGLE AND ITS PROPERTIES :

POWER POINT PRESENTATION ON TRIANGLE AND ITS PROPERTIES

Defination of Triangle :

Defination of Triangle A triangle is a simple closed curve made of three line segment. A c B It has three vertices-A,B,C
Three sides - AB,BC,CA
Three angles-<A,<B,<C

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Classification Of Triangles Classifying Triangles by Sides:- Scalene triangle:- A triangle having all the sides are unequal are called scalene triangle. c A B 5cm 8cm 4cm

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Isosceles triangle:-a triangle having two sides are equal are called isosceles triangle. A B c 5cm 5cm 8cm

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Equilateral triangle:-A triangle having all sides are equal are called equilateral triangle. 6cm 6cm 6cm A B c

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Classifying Triangles by angles- Acute-angles triangle:-A triangle having all the angles are greater than 0 but less than 90 are called Acute-angles triangle. o o A B c o 70 o 60 o

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Right-angled triangle:-A triangle having one angle is 90 is called Right-angled triangle. o 90 o B A c

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Obtuse –angled triangle:-A triangle having one angle is greater then 90 but less than 180 is called Obtuse –angled triangle. o o 120 o B A c

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Medians of Triangle Median of the triangle:-A line segment joining the vertex of a triangle to the mid point of its opposite side is called a median of a triangle. D c B A AD= median

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Altitudes of Triangle Altitudes of triangle:-The perpendicular line segment from a vertex of a triangle to its opposite side is called an altitude of a triangle. D A B c

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Exterior Angle of a Triangle Exterior angle of a triangle:-An exterior angle of a triangle is formed when a side of a triangle is produced. At each vertex, you have two ways of forming an exterior angle. A B c D <ACD=Exterior Angle.

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Interior Angle of a Triangle Interior angle of a triangle:-An interior Angle of a triangle is formed inside of a triangle. B c A <A<B<C=Interior Angle.

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Base Perpendicular Hypotenuse A B C Pythagoras Theorem ( AC) 2 = (AB) 2 + (BC) 2
Hypotenuse 2 = Perpendicular 2 + Base 2 In a right triangle, the square of the longest
side is equal to the sum of squares of remaining two sides.

Slide 14:

Pythagoras Theorem

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THANK YOU DESIGNED BY-: PRATEEK KHATRI

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