oblicz pole pięciokąta:
obrazek w zalączniku daje naj
Pc=10cm+10cm=100cm² P₁=5cm*5cm/2=12,5cm² P₂=5cm*3,5cm/2=8,75cm² 100cm²-2·12,5cm²-2·8,75cm²=100cm²-25cm²-17,5cm²=57,5cm² Odp. Pole tego pięciokąta wynosi 57,5cm².
Pc=10cm+10cm=100cm^2P1= 5*5/2=12,5cm^2P2=5cm*3,5cm/2=8,75cm^2100cm^2-2·12.5cm^2-2·8.75cm^2=100cm^2-25cm^2-17.5cm^2=57.5cm^2Odpowiedź.: Pole tego pięciokąta wynosi 57.5cm^2
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Pc=10cm+10cm=100cm²
P₁=5cm*5cm/2=12,5cm²
P₂=5cm*3,5cm/2=8,75cm²
100cm²-2·12,5cm²-2·8,75cm²=100cm²-25cm²-17,5cm²=57,5cm²
Odp. Pole tego pięciokąta wynosi 57,5cm².
Pc=10cm+10cm=100cm^2
P1= 5*5/2=12,5cm^2
P2=5cm*3,5cm/2=8,75cm^2
100cm^2-2·12.5cm^2-2·8.75cm^2=100cm^2-25cm^2-17.5cm^2=57.5cm^2
Odpowiedź.: Pole tego pięciokąta wynosi 57.5cm^2