18๊ฐ•
Point (์ ) – ์ ์„ ์ฐ๋Š” ๋ช…๋ น์–ด,
Divide (๊ฐœ์ˆ˜ ๋ถ„ํ• ) – ๊ฐ์ฒด๋ฅผ ๊ฐœ์ˆ˜๋กœ ๋ถ„ํ• ํ•˜๋Š” ๋ช…๋ น์–ด,
Measure (๊ธธ์ด ๋ถ„ํ• ) – ๊ฐ์ฒด๋ฅผ ๊ธธ์ด๋กœ ๋ถ„ํ• ํ•˜๋Š” ๋ช…๋ น์–ด


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