Question

Prosze o obliczenie objetosci graniastosłupów. Są to zadania z 6 klasy podstawowej.Zadania w załączniku. PILNE!!!

Answer 1

Zad 6.

Pp = 1/2 * a * h = 1/2 * 8 * 4 = 16

h = 7 (wg rysunku)

V = Pp * h = 16 * 7 = 112 cm³

 

Pp = a * h= 8 * 5 = 40 dm²

h = 8 dm

V = Pp * h = 40 * 8 = 320dm³

 

Pp = 2* ((a+b)/2) * h/2 = 2 * (((10+16)/2) * 10/2) = 2 * (13 * 5 ) = 130

h = 20

V = Pp * h = 2600 cm³

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zad 9.

 

Pp = 1/2 a h = 1/2 * 5 * 12 = 30

h = 5

V = Pp * h = 150 cm3

 

Pp = ((a+b)/2) * h = ((6+9)/2) * 4 = 30

h = 4

V = Pp * h = 30 * 4 = 120dm3