Question

Fie segmentul AB de lungime 45 sm si M apartine AB.Calculati lungimile AM si MB daca:
a)AM supra MB=2 SUPRA 7
b) AM supra MB = 5 supra 4 

Answer 1

a)
AM/MB=2/7
(AM+MB)/MB=(2+7)/7
45/MB=9/7
MB=45*7/9=35
AM=45-35=10
b)
AM/MB=5/4
(AM+MB)/MB=(5+4)/4
45/MB=9/4
MB=45*4/9=20
AM=45-20=25