Question

Como se faz essa questão?

Answer 1

a)
MA/MC
MA=AB=BC
MC=3MA
MA/MC=MA/3MA=1/3

b)
ME/MD
MF=FE=ED
ME=(2/3)MD
ME/MD=(2/3)MD/MD=(2/3)MD.(1/MD)=2/3

c)
ED/MD
MD=3ED
ED/MD=ED/3ED=1/3

d)
MA/AC
AC=2MA
MA/AC=MA/2MA=1/2