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Home > GC > Chapter 1 > Lesson 1.3.3 > Problem 1-123


The four triangles below are placed in a bag. If you reach into the bag without looking and pull out one triangle at random, what is the probability that: Homework Help ✎


  1. the triangle is scalene?

  2. the triangle is isosceles?

  3. at least one side of the triangle is cm?

    For part (a), remember that a scalene triangle has no equal sides.
    For part (b), remember that an isosceles triangle has two equal sides.

    For part (c) use the formula: