Question

Calculati perimetrul unui triunghi ABC care are:

a)AB=20mm,BC=1,2cm,AC=0,1dm
b)AB=21m,BC=1300 cm,AC0,1hm

c)AB=0,25hm,BC=3,10dam,AC=12m

d)Ab=2,8dam,BC=11,5m,AC1550cm

alt ex

transformati in dm

2800cm,,18 dam,,3m,,2,5km,,920000,,19hm dau coroana pls ajutorrr

Answer 1

a) AB = 20 mm = 2 cm 
BC = 1,2 cm 
AC = 0.1 dm = 1 cm 
P = 2 + 1,2 + 1 = 4,2 cm 

b) AB = 0,25 hm = 25 m 
BC = 31 m 
AC = 12 m 
P = 25 + 31 + 12 = 68 m 

2800 cm = 280 dm 
18 dam = 1800 dm 
3 m = 30 dm 
2,5 km = 25000 dm 
920000 (care e unitatea de masura?) = ... dm 
19 hm = 19000 dm