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Rezolvare :
l=6 cm , H=4 cm
ap=l/2 = 6/2 => ap=3 cm
Ap²=ap² + H²
Ap²=3²+4² = 9+16=25 => Ap=√25 => Ap= 5 cm
Ab=l²=6² =36 cm² => Ab=36 cm²
Al=(P*Ap) / 2
P=4*6 = 24 cm
Al=(24*5)/2 = 120/2 = 60 cm² => Al=60 cm²
A totala = P*(Ap+ap) / 2 = 24*(3+5) / 2 = 24*8 / 2 = 192 / 2 = 96 cm² => At=96 cm²
V = 1/3 * Ab * H = 1/3 * 36 * 4 = 36/3 * 4 = 12 * 4 = 48 cm³ => V=48 cm³
Am ingrosat ce a trebuit sa aflu .