????????? ?????????????????????????? (??????????????????) ?????????????????????????

?????????????? [ ?????? ]

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

• ??????????? (? ^? ? m ^? ) ????????????????????????????? SI
• ??? (a) = ?????????????? (???? ^? )
• ????? (ha) = ?????? (???a) = ?????? ^?
• ??????????????? (?? ^? ? km ^? ) = ???????? = ???????? = ??????????????????
• ??????????????? (Mm ^? ) = ?? ^?? ??????
• ??????????? = 2.5899881103 km²

?????????????????????? [ ?????? ]

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

??????????	???????	???????
?????	${\displaystyle a^{2}\,\!}$	${\displaystyle a\,}$ ?????????????? ?????
?????????????	${\displaystyle {\frac {\sqrt {3}}{4}}a^{2}\,\!}$	${\displaystyle a\,}$?????????????? ?????????????
??????? ?????	${\displaystyle {\frac {3{\sqrt {3}}}{2}}a^{2}\,\!}$	${\displaystyle a\,}$ ?????????????? ????????????
????????????	${\displaystyle 2(1+{\sqrt {2}})a^{2}\,\!}$	${\displaystyle a\,}$ ?????????????? ????????????
???????????	${\displaystyle {\frac {1}{2}}ap\,\!}$	${\displaystyle a\,}$ ?????????? (apothem) ?????????????????????????????? ??? ${\displaystyle p\,}$ ????????????????
???????????	${\displaystyle {\frac {P^{2}/n}{4\cdot \tan(\pi /n)}}\,\!}$	${\displaystyle \,P}$ ???????????????? ??? ${\displaystyle \,n}$ ???????????? ??????
??????????? (??????????????????????)	${\displaystyle {\frac {P^{2}/n}{4\cdot \tan(180^{\circ }/n)}}\,\!}$
?????????	${\displaystyle ab\,\!}$	${\displaystyle a\,}$ ??? ${\displaystyle b\,}$ ???????????????? ????????? (???? ??? ??????)
???????????? (????)	${\displaystyle bh\,\!}$	${\displaystyle b\,}$ ???????????? ??? ${\displaystyle h\,}$ ???????????????????????
??????????	${\displaystyle {\frac {1}{2}}ab}$	${\displaystyle a\,}$ ??? ${\displaystyle b\,}$ ??????????????????????????????????????? ??????????
??????? ( ???????????? ???????????????? )	${\displaystyle {\frac {1}{2}}bh\,\!}$	${\displaystyle b\,}$ ????????? ??? ??? ${\displaystyle h\,}$ ????????? ????? (?????????????????)
???????	${\displaystyle {\frac {1}{2}}ab\sin C\,\!}$	${\displaystyle a\,}$ ??? ${\displaystyle b\,}$ ????????????????? ??? ${\displaystyle C}$ ????????????????????????????????
??????	${\displaystyle \pi r^{2}\,\!}$ ? ${\displaystyle \pi d^{2}/4\,\!}$	${\displaystyle r\,}$ ????????? ??? ?????? ??? ${\displaystyle d\,}$ ????????? ???????????
?????	${\displaystyle \pi ab\,\!}$	${\displaystyle a\,}$ ?????????????? ??? ${\displaystyle b\,}$ ???????????????
???????????	${\displaystyle {\frac {1}{2}}(a+b)h\,\!}$	${\displaystyle a\,}$ ??? ${\displaystyle b\,}$ ?????????????????? ??? ${\displaystyle h\,}$ ???????????????????? (?????)
??????????????? ???????	${\displaystyle 2\pi r^{2}+2\pi rh\,\!}$	${\displaystyle r\,}$ ???????? ??? ${\displaystyle h\,}$ ????????? ???????
?????????????????????	${\displaystyle 2\pi rh\,\!}$
??????????????? ???	${\displaystyle \pi r(l+r)\,\!}$	${\displaystyle r\,}$ ???????? ${\displaystyle l\,}$ ???????????????????? ???
?????????????? ???	${\displaystyle \pi rl\,\!}$
??????????????? ??????	${\displaystyle 4\pi r^{2}\,\!}$ ? ${\displaystyle \pi d^{2}\,\!}$	${\displaystyle r\,}$ ????? ??? ${\displaystyle d\,}$ ????????????? ??????
????????????	${\displaystyle {\frac {1}{2}}r^{2}\theta \,\!}$	${\displaystyle r\,}$ ???????? ${\displaystyle \theta \,}$ ???????? (????? ???????? )