Asked by ann

Prove algebraically that the ratio of perimeters of two triangles is 1:4 if the ratio of their corresponding sides is 1:4
Answered by Neil
Square the ratios, and what do you get?
Answered by Damon
sides a, b c
perimeter = a+b+c

perimeter 4 a + 4 b + 4 c =4(a+b+c)
Answered by Damon
not area, perimeter
Answered by Neil
Oh sorry, I mis-read. Thank you for pointing it out.
Answered by Damon
You are welcome :)
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