If you have two similar objects that have a scale factor of 5:7, what is the ratio of their surface areas?Select one:a.10:14b.25:49c.125:343d.5:7Clear my choice
Question
If you have two similar objects that have a scale factor of 5:7, what is the ratio of their surface areas?Select one:a.10:14b.25:49c.125:343d.5:7Clear my choice
Solution
The ratio of their surface areas is determined by squaring the scale factor. So, if the scale factor of their lengths is 5:7, the ratio of their surface areas is 5² : 7² = 25:49. Therefore, the correct answer is b. 25:49.
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