[6 x (5 x 6)] : 2 = [6 x 30] : 2 = 180 : 2 = 90 [cm(2)]
wysokość -6cm
podstawa-24cm bo 6×5=30cm 30-6=24cm
PΔ=½ a×h
PΔ=½ 6×30
PΔ=90cm²
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[6 x (5 x 6)] : 2 = [6 x 30] : 2 = 180 : 2 = 90 [cm(2)]
wysokość -6cm
podstawa-24cm bo 6×5=30cm 30-6=24cm
PΔ=½ a×h
PΔ=½ 6×30
PΔ=90cm²