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LoveToDance22

  • 3 years ago

Geometry, please help!

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  1. LoveToDance22
    • 3 years ago
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    An architect planned to construct two similar stone pyramid structures in a park. The figure below shows the front view of the pyramids in her plan but there is an error in the dimensions.

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  2. LoveToDance22
    • 3 years ago
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    Which of the following changes should she make to the dimensions to correct her error? a. change the length of side RP to 3 feet b. change the length of side CA to 5 feet c. change the length of side RP to 8 feet d. change the length of side CA to 6 feet

  3. cookies
    • 3 years ago
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    hero!!

  4. Hero
    • 3 years ago
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    @LoveToDance, Have you computed the ratios of the corresponding sides yet?

  5. LoveToDance22
    • 3 years ago
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    No, I'm not sure how to solve this.

  6. Hero
    • 3 years ago
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    Hint: To find the ratios of the corresponding sides of two similar triangles, notice that: RP corresponds to CA PQ corresponds to AB QR corresponds to BC Next compute: \(\frac{RP}{CA}\) \(\frac{PQ}{AB}\) \(\frac{QR}{BC}\)

  7. LoveToDance22
    • 3 years ago
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    @Hero Is it B? (change the length of side CA to 5 feet)

  8. Hero
    • 3 years ago
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    How did you figure it out?

  9. LoveToDance22
    • 3 years ago
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    I used ratios haha, thanks!

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