Prism 4 sides

Find the surface area and volume four-sided prism high 10cm if its base is a rectangle measuring 8 cm and 1.2dm

Correct answer:

S =  592 cm²
V =  960 cm³

Step-by-step explanation:

$$\begin{gathered} c=10\text{ cm } \\ a=8\text{ cm } \\ b=1.2\text{ dm}\to \text{ cm}=1.2\cdot 10\text{ cm}=12\text{ cm } \\ S=2\cdot (a\cdot b+b\cdot c+a\cdot c)=2\cdot (8\cdot 12+12\cdot 10+8\cdot 10)=592{\text{cm}}^2 \end{gathered}$$

$V=a\cdot b\cdot c=8\cdot 12\cdot 10=960{\text{cm}}^3$

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