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SMP N 1 Cibinong 7-1 2008-2009

Triangle and Quadrilateral. SMP N 1 Cibinong 7-1 2008-2009. TRIANGLE. Triangle is a certain plane which has three close side. Parts of Triangle. Vertex (point , , ,) Side (line , , ,) Angle ( , , ). Kinds of Triangle.

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SMP N 1 Cibinong 7-1 2008-2009

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  1. Triangle and Quadrilateral SMPN 1 Cibinong 7-1 2008-2009

  2. TRIANGLE

  3. Triangle is a certain plane which has three close side

  4. Parts of Triangle • Vertex (point , , ,) • Side (line , , ,) • Angle ( , , )

  5. Kinds of Triangle a) Look into length of side a.1) Triangle • Scalene Triangle (sembarang)1.1 • Isosceles Triangle (sama kaki)1.2 • Equilateral Triangle (sama sisi)1.3 1.1 1.2 1.3

  6. Kinds of Triangle b) Look into measure of the angle • Acute triangle (if all of three sides is < 90⁰) • Right triangle (if one of three sides = 90⁰) • Obtuse triangle (if one of three side90⁰ < side < 180⁰)

  7. Circumference and Area of Triangle 1.a) Circumference 1.b) Area

  8. QUADRILATERAL

  9. Rectangle • Circumference: • side + side + side Wide (w) Length (l)

  10. Square Side (s) Side (s)

  11. Parallelogram side high base side

  12. Rhombus Side (s) Side (s) diagonal² diagonal¹ Side (s) Side (s)

  13. Kite Side (s) Side (s) diagonal¹ diagonal² Side (s) Side (s)

  14. Trapezoid (side) Paralel side side side high Paralel side (side)

  15. Kinds of Trapezoid • Isosceles trapezoid (trapesium sama kaki)1.1 • Right trapezoid (trapesium siku - siku)1.2 • Scalence trapezoid (trapesium sembarang)1.3 1.1 1.2 1.3

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