Question

oblicz pole prostokata o wymirach:

a. 13m x 19m

b. 8,cm x 3cm

c. 4dm x 6dm

d. 2,5cm x 72mm

e. 6,3m x 25cm

f. 4,5km x 8 km

prosze pomuzdzcie

Answer 1

a) 247cm2

b) 24cm2

c) 24dm2

d) 18cm2

e) 15750cm2

f) 36km2

Answer 2

P= a*b

 

a. 13m x 19m =247 m2

b. 8,cm x 3cm = 24 cm2

c. 4dm x 6dm= 24 dm2

d. 2,5cm x 72mm = 2,5cm * 7,2 cm = 18cm2

e. 6,3m x 25cm = 6,3m * 0,25m=1,575 m2

f. 4,5km x 8 km = 36km2

 

liczę na naj :P