Quadrilateral 28491

Calculate the weight of a regular quadrilateral pyramid with a base edge of 4 cm in length and a body height of 6 cm if it is made of a material density of 8 g/cm³.

Correct answer:

m =  256 g

Step-by-step explanation:

$$\begin{gathered} a=4\text{cm} \\ h=6\text{cm} \\ \rho =8{\text{g/cm}}^3 \\ {S}_1=a^2=4^2=16 \\ V=\frac{1}{3}\cdot S_1\cdot h=\frac{1}{3}\cdot 16\cdot 6=32{\text{cm}}^3 \\ m=\rho \cdot V=8\cdot 32=256\text{g} \end{gathered}$$

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