The sides of a triangle are 4, 10, and 5. Find the length of the longest side of a similar triangle whose shortest side is 12.

Answer 1

In triangle 4 , 10 , 5 shortest side is 4 , longest side is 10

The ratio of corresponding shortest sides 12 / 4 = 3

The ratio of corresponding longest sides is also 3

3 ∙ 12 = 36

Answer 2

My typo.

3 ∙ 10 = 30

30 is longest side.