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raekwon12
14.07.2019 •
Mathematics
Calculate the mass of the prism give your answer in kilograms.
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Ответ:
Where
a = top length
b = bottom length
h = height
∴ Area of trapezium
= ½(8 + 12)(6)
= 60cm²
The volume of prism
= base area × length
= 60 × 20
= 1200cm³
Density = 5g/cm³
Mass = Density × Volume
Mass = 5g/cm³ × 1200cm³
Mass = 6000g
Convert g to kg = 6000g ÷ 1000 = 6kg
Mass of the prism = 6kg
Ответ: