# 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/cm ^ 3

S =  14.4 dm2
m =  2.56 kg

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