์ •์‚ผ๊ฐํ˜• ๋†’์ด & ๋„“์ด ๊ณต์‹

์ •์‚ผ๊ฐํ˜• ๋†’์ด ๊ณต์‹

ํ•œ ๋ณ€์˜ ๊ธธ์ด๋ฅผ a๋กœ ๋‘์—ˆ์„ ๋•Œ,
$h=\frac{\sqrt{3}}{2}a$

์ •์‚ผ๊ฐํ˜• ๋„“์ด ๊ณต์‹

$S= \frac{\sqrt{3}}{4}a^2$