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Home > CCGS > Chapter 2 > Lesson 2.1.5 > Problem 2-56

2-56.

Crea una ecuación para cada diagrama a continuación y calcula x.

  1. Perímetro = unidades
    An irregular pentagon with sides 2 x, x minus 1, 2 x, 2 x minus 3, and x.

    Usa la ecuación

    para despejar la x.

  1. A triangle where two of the sides each have 1 tick mark. The left side is,3 x minus 2, and the right side is, 5 x minus 14.

  1. Two adjacent angles together form a vertical line. The angle on the bottom is 3 x + 20 degrees. The angle on the top is 5 x degrees.

    Los dos ángulos son un par lineal, así que suman en total.

  1. A triangle where two of the sides each have 1 tick mark. The base angles are,3 x + 20, and 5, x, degrees.

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