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28 June, 15:23

Which descriptions can describe more than one triangle? Select two options.

side lengths of 6 ft, 8 ft, and 10 ft

angle measurements of 35, 35, and 110°

angle measurements of 30°, 40, and 50°

angle measurements of 40°, 60°, and 80°

side lengths of 4 cm, 6 cm, and 9 cm

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Answers (2)
  1. 28 June, 15:51
    0
    angle measurements of 35, 35, and 110°

    angle measurements of 40°, 60°, and 80°

    Step-by-step explanation:

    we know that

    The length sides of a triangle must satisfy the Triangle Inequality Theorem and the sum of their interior angles must be equal to 180 degrees

    Remember that

    If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

    That means, I can have more than one triangle with the same internal angles

    so

    Verify each description

    case 1) side lengths of 6 ft, 8 ft, and 10 ft

    Remember that

    The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

    so

    Applying the triangle inequality theorem

    1) 6+8 > 10 - --> is true

    2) 6+10 > 8 - --> is true

    3) 8+10 > 6 - --> is true

    therefore

    The description describe only one triangle

    case 2) angle measurements of 35, 35, and 110°

    The sum of the interior angles is equal to 180 degrees

    therefore

    The description can describe more than one triangle, by similar triangles

    case 3) angle measurements of 30°, 40, and 50°

    The sum of the interior angles is not 180 degrees

    therefore

    The description is not a triangle

    case 4) angle measurements of 40°, 60°, and 80°

    The sum of the interior angles is equal to 180 degrees

    therefore

    The description can describe more than one triangle, by similar triangles

    case 5) side lengths of 4 cm, 6 cm, and 9 cm

    Remember that

    The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

    so

    Applying the triangle inequality theorem

    1) 4+6 > 9 - --> is true

    2) 4+9 > 6 - --> is true

    3) 6+9 > 4 - --> is true

    therefore

    The description describe only one triangle
  2. 28 June, 15:54
    0
    Angle measurements of 35, 35, and 110°

    Angle measurements of 40°, 60°, and 80°

    Step-by-step explanation:

    took a test got the answer correct
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