??? ???? (? ???? ????? : ?"? ) ??? ????? ???? ? ??? ? ???? ?????? , ???? ???? ????? ?? ????? ????? ???? ??? ???.

???? ????? ????? ${\displaystyle m^{2}}$. ??????, ??????, ??? ????? ????? ???? ???? 8 ???, ????? ???? ????? 12 ???, ?? ???? ??? ${\displaystyle 8m\cdot 12m=96m^{2}}$. ??? ????? ? ?? ?? ???? ??? 2.5 ??? ?????? 1.25 ???, ?? ??? ?????? ??? ??? ${\displaystyle 2\pi \cdot 2.5m\cdot 1.25m=6.25\pi \cdot m^{2}\approx 19.63m^{2}}$

?????? ???? ?????? ????, ??????? ?????? ?? ??????? ? ??????? ?????? ??????? ?????????? ??:

?????? ???? ?????? ??????? ?????? ?? ?? ???? ??? ??????? ????? ?????????? ?? ????? ??????? ?????????? ??:

• ?? ? 100 ??? ????
• ???? ???? ? 1,000 ??? ????
• ????? ? 100 ??, ??? 10,000 ??? ????

??????? ???????? [ ????? ??? ???? | ????? ]

???? ?????? ????? ??? ???? ? ??????????

??? ?? ??? ?????  ????? ??????? . ??? ??????? ????? ?????????? ? ?????? ???? .