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a - podstawa
h = 24
h = ³/₄ a
a = ⁴/₃ h
a = 32
P = ½ah
P = ½ × 24 × 32
P = 384 (cm²) = 3,84(dm²)
P=½*a*24 24+6=30
P=½*30*24 a=30
P=15*24
P=360cm²=36dm²
Odp:Pole tróEjkąta wynosi 36dm²
P=1/2 *h*a
P=1/2 *24cm *32cm=384cm² =3,84dm²