What is the image of AB? and What is the length of the actual car?

Mathematics
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In the diagram, the dashed figure is the image of the solid figure.

What is the image of AB?

a.  PS

b.  RS

c.  QR

d.  PQ

A model car has a scale of 1:25. The length of the model when built is 9.6 in. What is the length of the actual car?

a.  20 inches

b.  20 feet

c.  25 feet

d.  19.2 feet

May 7th, 2015

In the diagram AB is the longest segment- therefore the longest segment in the dashed figure would be the image of AB. The answer is QR.


The length of the model is 25 times smaller than the actual. To get the actual you multiply 9.6in by 25 which gives you 240in. To get feet you divide 240in by 12in since there are 12in in a foot. 240/12=20. The length of the actual car is 20 feet.

May 7th, 2015

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May 7th, 2015
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May 7th, 2015
Feb 20th, 2017
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