👤

aflati lungimea segmentului AB,daca AC=3dm 7cm 7mm BC=2 dm 8cm 9mm

Răspuns :

AB=AC+BC = 3 dm 7cm 7mm+ 2dm 8cm 9 mm= 5 dm 15 cm 11mm
Cred ca e bine :))
3dm=300mm
7cm=70mm
300+70+7=377mm(segmentul AC)

2dm=200mm
8cm=80mm
200+80+9=289mm(segmentul BC)

AC-BC=AB
377-289=88 mm(segmentul AB)