joshua benny hinn ppt 1 triangles for class x
- 2. Triangle A triangle Edges and vertices3Schläfli symbol{3} (for equilateral)Areavarious methods; see belowInternal angle (degrees)60° (for equilateral)
- 3. A triangle, showing exterior angle d.
- 4. The measures of the interior angles of the triangle always add up to 180 degrees (same color to point out they are equal).
- 5. Types of triangles I ) Equilateral Triangle II) Isosceles Triangle III) Right Triangle IV) Scalene Triangle V) Acute Triangle VI)Obtuse Triangle
- 6. Equilateral Triangle Three equal sides Three equal angles, always 60°
- 7. Isosceles Triangle Two equal sides Two equal angles
- 8. Right Triangle Has a right angle (90°)
- 9. Scalene Triangle No equal sides No equal angles
- 10. Acute Triangle All angles are less than 90°
- 11. Obtuse Triangle Has an angle more than 90°
- 12. Basic proportionality theorem If a line is drawn parallel to one side of a triangle and it intersects the other two sides in two distinct points then it divides the two sides in the same ratio.
- 13. In the , if DE||BC, then
- 14. Converse of Basic Proportionality Theorem If a line divides any two sides of a triangle in the same ratio, the line must be parallel to the third side.
- 15. In the, if D and E are two points on AB and AC respectively such that,, thenDE||BC
- 16. MADE BY :- JOSHUA CLASS :- X B ROLL NO :- 10209 ADMISSION NO :- 10209