Question

Expresse, em metro quadrado, as medidas de superfície a seguir.

a) 1/2 dam² _________________ m²

b) 8/5 cm² _________________ m²

c) 1/4 dam² _________________ m²

d) 3/4 km² __________________ m²


ajuda

Answer 1

Resposta:

a)

1dam^2===100

1/2dam^2==x

x=100×1/2

x=10/2

x=50m^2

b)

1m^^==10000

x==8/5

10000x=8/5

x=8/5/10000

x=8/5×10000

x=8/50000

x=0,00016m^2

c)1dam^2==100

1/4dam^2===x

x=100×1/4

x=100/4

x=25m^2

d)

1km^2===1000000m^2

3/4==x

x=3×1000000/4

x=3000000/4

x=750000m^2

espero que isso ajude vc.