Question

Pp = 15 cm2 h = 6 cm v = ?

Pp = 3dm2 h = 0.5 dm v = ?

Pp = 26cm2 h = 1m v = ?

Pp = ? h = 0.5 dm v = 17 dm3

Pp = 10m2 h = ? v = 640 m 3

Pp = 3.2dm2 h = ? v = 320 dm3

Pomożecie?

Answer 1

Pp = 15 cm2 h = 6 cm v = ?

15x6=90

Pp = 3dm2 h = 0.5 dm v = ?

3x0.5=1.5

Pp = 26cm2 h = 1m v = ?

1m = 100cm

26x100=2600

Pp = ? h = 0.5 dm v = 17 dm3

Pp x 0.5 = 17 | x2

Pp = 34

Pp = 10m2 h = ? v = 640 m 3

10 x H = 640 | :10

H=64

Pp = 3.2dm2 h = ? v = 320 dm3

3.2 x H = 320 |:3.2
H=100

Answer 2

V = Pp* h  - objętość graniastosłupa

zatem

V1 = 15 cm^2 * 6 cm = 90 cm^3

V2 = 3 dm^2 * 0,5 dm = 1,5 dm^3

V3 = 26 cm^2 * 1 m = 26 cm^2 * 100 cm = 2 600 cm^2

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Pp = V : h

Pp = 17 dm^3 : 0,5 dm = 34 dm^2

h = V : Pp

h = 640 m^3 : 10 m^2 = 64 m

h = 320 dm^3 : 3,2 dm^2 = 100 dm

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