School model
The beech school model of a regular quadrilateral pyramid has a base 20 cm long and 24 cm high. Calculate a) the surface of the pyramid in square decimeters, b) the mass of the pyramid in kilograms if the density of the beech is ρ = 0,8 g/cm3
Correct answer:

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You need to know the following knowledge to solve this word math problem:
solid geometryplanimetricsUnits of physical quantitiesGrade of the word problem
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