Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys


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  Extra Practice  

Determine if the two figures are similar by using transformations. Explain your reasoning.

  • Question 13 (request help)

    Shannon is making three different sizes of blankets from the same material. The first measures 2.5 feet by 2 feet. She wants to enlarge it by a scale factor of 2 to make the second blanket. Then she will enlarge the second one by a scale factor of 1.5 to make the third blanket. What are the dimensions of the third blanket? Are all of the blankets similar?
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  • Question 14 (request help)

    Model with Mathematics In the figure shown, trapezoid RSTU has vertices R(1, 3), S(4, 3), T(3, 1), and U(2, 1).

    a. Draw the image of RSTU after a translation of 2 units down followed by a dilation with a scale factor of 2. Label the vertices ABCD.
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  • Question 14 (request help)

    b. Draw the image of RSTU after a dilation with a scale factor of 2 followed by a translation of 2 units down. Label the vertices EFGH.
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    c. Which figures are similar? Which figures are congruent?
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  • Question 14 (request help)

    d. Are ABCD and EFGH in the same location? If they are not, what transformation would map ABCD onto EFGH?
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