Răspuns :
/,a/4=b/5
a/b=4/5, (a+b)/b=9/5, 18/b=9/5, b=10, a=8 segmentul mai scurt are 8 cm
a/b=4/5, (a+b)/b=9/5, 18/b=9/5, b=10, a=8 segmentul mai scurt are 8 cm
notam o parte din segment cu |---|=2cm ; obtinut din 18cm:(4+5)parti=2cm
atunci, |---|---|---|---|---|---|---|---|---|
A M B
=> AM = 4 parti x 2cm = 8cm
MB = 5 parti x 2cm = 10cm
atunci, |---|---|---|---|---|---|---|---|---|
A M B
=> AM = 4 parti x 2cm = 8cm
MB = 5 parti x 2cm = 10cm