Solving For Missing Sides Of Similar Triangles (Post-test)

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  • 1/7 Questions
    These two triangles are similar.  Solve for x. - ProProfs

    These two triangles are similar.  Solve for x.

    • X = 26.66666666666666666
    • X = 0.6
    • X = 19
    • X = 15
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Solving For Missing Sides Of Similar Triangles (Post-test) - Quiz
About This Quiz

This quiz is designed to test your ability to use properties of similar triangles to set up proportions in order to solve for missing sides of similar triangles.

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  • 2. 
    Use the properties of similar triangles to find the height of the tree. - ProProfs

    Use the properties of similar triangles to find the height of the tree.

    • H = 48 feet

    • H = 12 feet

    • H = 3/4 feet

    • H = 48 inches

    Correct Answer
    A. H = 12 feet
    Explanation
    When you set up your proportion you should get:

    h/3 = 24/6

    You then solve the proportion to find the value of h.

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  • 3. 
    These two triangles are similar.  Solve for x. - ProProfs

    These two triangles are similar.  Solve for x.

    • X = 96

    • X = 91

    • X = 2.6666666666666

    • X = 84.375

    Correct Answer
    A. X = 96
    Explanation
    When you set up your proportion, you should get:

    x/16 = 90/15

    You then solve this proportion to find the value of x.

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  • 4. 
    - ProProfs

    • 990 feet

    • 4647.5 feet

    • .03636363636 feet

    • 2138 feet

    Correct Answer
    A. 990 feet
    Explanation
    When you set up your proportion, you should get:

    x/6 = 2145/13

    You then solve for x to find the height of the tower.

    Rate this question:

  • 5. 
    These two triangles are similar.  Solve for x. - ProProfs

    These two triangles are similar.  Solve for x.

    • X = 6.666666666666666

    • X = 13

    • X = 5.4

    • X = 15

    Correct Answer
    A. X = 15
    Explanation
    When you set up your proportion, you should get:

    x/9 = 10/6

    You then solve the proportion for x.

    Rate this question:

  • 6. 

    Select all of the properties that are ALWAYS true of similar triangles.

    • Their angle measures are congruent.

    • They have the same shape.

    • Their side lengths are proportional.

    • They are the same size.

    Correct Answer(s)
    A. Their angle measures are congruent.
    A. They have the same shape.
    A. Their side lengths are proportional.
    Explanation
    The definition of similar triangles is triangles that have the same shape but not necessarily the same size. The fact that the triangles have the same shape means that they must have the same angles. Also, the triangles side lengths must be proportional.

    Similar triangles can be the same size, but they are not ALWAYS the same size.

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  • 7. 
    These two triangles are similar.  Solve for x. - ProProfs

    These two triangles are similar.  Solve for x.

    • X = 5.4

    • X = 1.6666666666666666

    • X = 7

    • X = 15

    Correct Answer
    A. X = 5.4
    Explanation
    When you set up your proportion, you should get:

    x/3 = 9/5

    You then solve your proportion to get your value for x.

    Rate this question:

Quiz Review Timeline (Updated): Mar 21, 2023 +

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 30, 2013
    Quiz Created by
    Cutkdmaster
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