In a box, there are 8 red, 7 blue, and 6 green balls. One ball is picked up randomly.
1 answer:
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Answer:
The ratio of their surface areas is
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its corresponding sides is equal and this ratio is called the scale factor
In this problem the scale factor is equal to the ratio
and
Remember that
If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared
therefore
In this problem the ratio of their surface areas is