Ile cm2 sklejki potrzeba na wykonanie łopaty do odgarniania śniegu?
podstawa 60 i 50
wysokość 35
P = 1/2 * (60+50) * 35 = 150 * 35 = 5350 cm2
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P = 1/2 * (60+50) * 35 = 150 * 35 = 5350 cm2