1. LoveToDance22

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.

2. LoveToDance22

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

hero!!

4. Hero

@LoveToDance, Have you computed the ratios of the corresponding sides yet?

5. LoveToDance22

No, I'm not sure how to solve this.

6. Hero

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

@Hero Is it B? (change the length of side CA to 5 feet)

8. Hero

How did you figure it out?

9. LoveToDance22

I used ratios haha, thanks!

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