P = 1/2 · (a + b) · h
a, b → podstawy
h → wysokość
a = 1 cm + 4 cm + 1 cm = 6 cm
b = 4 cm
h = 3 cm
P = 1/2 · (6 cm + 4 cm) · 3 cm
P = 1/2 · 10 cm · 3 cm
P = 5 cm · 3 cm
P = 15 cm²
4cm+2cm=6cm
6cm+4cm=10cm
10cm·3cm=30cm
30cm:w=15cm
P=15cm²
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P = 1/2 · (a + b) · h
a, b → podstawy
h → wysokość
a = 1 cm + 4 cm + 1 cm = 6 cm
b = 4 cm
h = 3 cm
P = 1/2 · (6 cm + 4 cm) · 3 cm
P = 1/2 · 10 cm · 3 cm
P = 5 cm · 3 cm
P = 15 cm²
4cm+2cm=6cm
6cm+4cm=10cm
10cm·3cm=30cm
30cm:w=15cm
P=15cm²