Odpowiedzi

2009-11-29T15:43:57+01:00
15dm=150cm
P=1/2ah
24000=1/2x150xh
48000=150h/:150
h=32
2009-11-29T15:46:25+01:00
24000cm²=2,4m²,,,,15dm=1,5m,,,,,pole=½×a×h→2,4m²=½×1,5m×h→2,4=0,75h→h=2,4:0,75=3,2m,,,,jeszcze ci rozpisze te pole: 1m²=100cm×100cm=10000cm²→1cm²=0,0001m²,czyli 24000cm²=24000×0,0001=2,4m²,,,oidp.wysokosc Δ wynosi 3,2m
2009-11-29T15:46:50+01:00
P = 24000 cm² = 240 dm²
a = 15 dm


P = 1/2 * a * h
240 = 1/2 * 15 * h
240 = 7,5 * h 240/7,5=32
240 = 7,5 * 32

h = 32 dm = 320 cm = 32000 m