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# Ppt on triangles cbse viith class

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### Transcript

• 1. PRESENTATION ON THE TRIANGLE AND ITS PROPERTIES MADE BY N SAI DEEPAK & N sai deepika
• 2. INTRODUCTION TO TRIANGLES Sides AB ,BC ,CA Vertices A,B,C Angles ABC ,BCA ,CAB CB A A triangle is a closed figure made of three line segments.
• 3. CLASSIFICATION OF TRIANGLE SIDES ANGLES
• 4. CLASSIFICATION OF TRIANGLES BASED ON SIDES EQUILATERAL TRIANGLE ISOSCELES TRIANGLE SCALENE TRIANGLE
• 5. DIFFERENT TYPES OF TRIANGLES EQUILATERAL TRIANGLE ISOSSELES TRIANGLE SCALENE TRIANGLE RIGHT – ANGLED TRIANGLE ACUTE -ANGLED TRUIANGLE OBTUSE –ANGLED TRIANGLE
• 6. MEDIAN OF TRIANGLE A MEDIAN OF CONNECTS A VERTEX OF A TRIANGLE TO THE MID – POINT OF THE OPPOSITE SIDE. THE TRIANGLE HAS THREE MEDIANS
• 7. ALTITUDES OF TRIANGLE THE PERPENDICULAR LINE SEGMENT FROM A VERTEX TO ITS OPPOSITE SIDE IS CALLED ALTITUDE OF TRIANGLE.
• 8. EXTERIOR ANGLE OF TRIANGLE THE EXTERIOR ANGLE OF TRIANGLE IS EQUAL TO THE SUM OF ITS TWO INTERIOR OPPOSITE ANGLES . d IS EXTERIOR ANGLE