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Geometria 6 to Geometria 6 to Presentation Transcript

  • GEOMETRÍA Prof. Juan Arturo
  • EJERCICIOS DE REPASO 1. Calcular “x”, si M es punto medio de AB 8x – 21 5x + 36 A M B 8x – 21 = 5x + 36 8x – 5x = 26 + 21 3x = 57 x = 19
  • 2. Calcular A, si AB = 5; BC = 7 y CD = 8
  • 3. Calcular P, si MN = 7; PQ = 3 y RS = 3
  • 4. Calcular “x”: x + x + 7 + x = x + 31 3x + 7 = x + 31 3x – x = 31 – 7 2x = 24 x = 12 x x + 7 x A B C D x + 31
  • 5. Sobre una recta se toman los puntos consecutivos A, B, C y D. Si AB = x + 1; BC = x + 2; CD = 2x + 7 y AD = 50. Calcular BC x + 1 + x + 2 + 2x + 7 = 50 4x + 10 = 50 4x = 50 – 10 4x = 40 x = 10 BC = 10 + 2 = 12 x + 1 x + 2 2x + 7 A B C D 50
  • 6. Calcular “x”: 3x + 40 + x + 20 = 180 4x = 180 – 40 – 20 4x = 120 x = 30º 40º x 3x 20º
  • 7. Calcular “Cw”: w + 90 + 26 = 180 w = 180 – 90 – 26 w = 64º Cw = 90 – 64 = 26º w 26º
  • 8. Calcular el complemento de los siguientes ángulos:
    • 61 º
    • 16 º
    • 77 º
    • 24 º
    • 18 º
    • 56 º
    • 29 º
  • 9. Calcular el suplemento de los siguientes ángulos:
    • 99 º
    • 64 º
    • 78 º
    • 124 º
    • 108 º
    • 156 º
    • 129 º
  • 10. Calcular “x”, L 1 //L 2 : 30 + 3x + 5 + 2x = 180 5x = 180 – 30 – 5 5x = 145 x = 29º L 1 30 + 3x L 2 5 + 2x
  • 11. Calcular “x”, si L 1 //L 2 : 115 = 75 + x 115 – 75 = x 40º = x L 1 75º 115º L 2 x 75º
  • 12. Calcular “x”, si L 1 //L 2 : x + 40 = 15 + 76 x + 40 = 91 x = 91 – 40 x = 51º L 1 15º x 76º 40º L 2
  • 13. En la figura mostrada, las rectas L 1 y L 2 son paralelas, hallar el valor de “x”   3x + 20 = 110 3x = 110 - 20 3x = 90 x = 30º L 1 110º 3x + 20 L 2
  •