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:

Which of the following changes should she make to the dimensions to correct her error?
A. Change the length of side AB to 2 feet
B. Change the length of side PQ to 8 feet
C. Change the length of side AB to 1 feet
D. Change the length of side PQ to 4 feet

Question

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:

Which of the following changes should she make to the dimensions to correct her error?
 A. Change the length of side AB to 2 feet 
 B. Change the length of side PQ to 8 feet 
 C. Change the length of side AB to 1 feet 
 D. Change the length of side PQ to 4 feet

anonymous · Answer

attachment

danjs · Answer

since it says they are similar,   the side lengths will be in equal proportions...

danjs · Answer

$$\frac{ BC }{ QR } = \frac{ CA }{ RP } = \frac{ AB }{ PQ }$$

anonymous · Answer

So it would be B?

danjs · Answer

two of those fractions are the same, one is different

anonymous · Answer

b

danjs · Answer

The first two fractions are both 1/3,    the last is not, unless you change AB to 2 instead