Rozwiążcie zadanie 2 przynajmniej
2.
sin60* = y / 12
√3/2 = y/12
2y = 12√3 /:2
y = 6√3
3.
h = 9cm
a = 5cm
V = 1/3 * Pp * h
V = 1/3 * 5^2 * 9 = 3 * 25 = 75cm^3 --------- objętośc
(1/2a)^2 + h^2 = h1^2
2,5^2 + 9^2 = h1^2
h1^2 = 6,25 * 81
h1^2 = 506,25
h1 = 22,5cm ------- wysokość ściany bocznej
Pc = Pp + Pb
Pc = a^2 + 4 * (1/2 * a * h1)
Pc = 25 + 2 * 5 * 22,5
Pc = 25 + 225
Pc = 250cm^2 ------- pole powierzchni
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2.
sin60* = y / 12
√3/2 = y/12
2y = 12√3 /:2
y = 6√3
3.
h = 9cm
a = 5cm
V = 1/3 * Pp * h
V = 1/3 * 5^2 * 9 = 3 * 25 = 75cm^3 --------- objętośc
(1/2a)^2 + h^2 = h1^2
2,5^2 + 9^2 = h1^2
h1^2 = 6,25 * 81
h1^2 = 506,25
h1 = 22,5cm ------- wysokość ściany bocznej
Pc = Pp + Pb
Pc = a^2 + 4 * (1/2 * a * h1)
Pc = 25 + 2 * 5 * 22,5
Pc = 25 + 225
Pc = 250cm^2 ------- pole powierzchni