Oblicz pole powieszchni prostopadłościanu o wymiarach 20 cm , 3 dm , 4 dm wynosi : Prosze całe Obliczenia Ok . : D
20cm = 2dm
Pc = 2 * Pp + Pb
Pp = 2 * 3 = 6dm^2
Pb = 2 * (3 * 4) + 2 * (2 * 4) = 24 + 16 = 40dm^2
Pc = 2 * 6 + 40 = 52dm^2
V = Pp * h
V = 6 * 4 = 24dm^3
20cm=2dm
wzór na pole powierzchni:
P=2ab+2ac+2bc
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20cm = 2dm
Pc = 2 * Pp + Pb
Pp = 2 * 3 = 6dm^2
Pb = 2 * (3 * 4) + 2 * (2 * 4) = 24 + 16 = 40dm^2
Pc = 2 * 6 + 40 = 52dm^2
V = Pp * h
V = 6 * 4 = 24dm^3
20cm=2dm
wzór na pole powierzchni:
P=2ab+2ac+2bc
P=2*2*3+2*3*4+2*4*2=52 [dm²]