Question

Prove algebraically that the ratio of perimeters of two triangles is 1:4 if the ratio of their corresponding sides is 1:4

Answer 1

Square the ratios, and what do you get?

Answer 2

sides a, b c
perimeter = a+b+c

perimeter 4 a + 4 b + 4 c =4(a+b+c)

Answer 3

not area, perimeter

Answer 4

Oh sorry, I mis-read. Thank you for pointing it out.

Answer 5

You are welcome :)