kierstinnkayeee kierstinnkayeee

04-03-2022
Mathematics

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After triangle ACE is dilated by a factor of 5, It has an area of 100 square inches. What was its area before dilation?

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jimthompson5910 jimthompson5910

04-03-2022

Answer: 4 square inches

Explanation:

Square the linear scale factor to get 5^2 = 25

This means that,

new area = 25*(old area)

We take this idea in reverse to find the old area

old area = (new area)/25

old area = (100 sq inches)/25

old area = 4 square inches

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