The answer would be percent decrease because if it started at 50 and turned to 40, it lowered since we know 50 is higher than 42 so it dropped by 8 since 8 divided by 50 0.16 and 0.16 times 100 EQUALS 16%
Using similar triangles, the proportionality ratio of △QRS to △KJI is of 1/3.
<h3>What are similar triangles?</h3>
Similar triangles are triangles that have the same angles, and whose side lengths are proportional.
For this problem, we have that:
- The sides that have length of 2 on △QRS have lengths of 6 on △KJI.
- The side that has a length of 1 on △QRS has length of 3 on △KJI.
Hence the proportionality ratio of △QRS to △KJI is given as follows:
2/6 = 1/3.
More can be learned about similar triangles at brainly.com/question/305520
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