Section B Section B Checkpoint

Problem 1

Explain why triangle RSTRST is similar to triangle TYZTYZ.

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Solution
Sample reasoning: Triangle RSTRST is similar to triangle TYZTYZ because triangle RSTRST can be dilated by a scale factor of 2 using point RR as the center, and then translated so that point RR goes to point TT
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Sample Response
Sample reasoning: Triangle RSTRST is similar to triangle TYZTYZ because triangle RSTRST can be dilated by a scale factor of 2 using point RR as the center, and then translated so that point RR goes to point TT

Problem 2

Triangle $ABC$ and triangle $DEF$ are similar.

  1. What is the length of side $DE$?
  2. What is the length of side $EF$?
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Solution
  1.  $\frac{35}{9}$ (or equivalent)
  2. $\frac52$ (or equivalent)
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Sample Response
  1.  $\frac{35}{9}$ (or equivalent)
  2. $\frac52$ (or equivalent)