Question

Help? If the perimeter of triangle ABC is 50 cm, what is the perimeter of triangle DEF?

Answer 1

ABC~DEF

Answer 2

all linear aspects are scaled, so whatever the scale ratio is you multiply by

Answer 3

spose we have sides: a,b,c P = a+b+c

and some scale factor n such that P' = an+bn+cn = n(a+b+c)

Answer 4

scale factor=21/15=7/5
p=(7/5)*50=?

Answer 5

70

Answer 6

Could you help me with one more problem? @surjithayer