Sumali sa IDNStudy.com at makakuha ng maraming kaalaman. Ang aming komunidad ay handang magbigay ng malalim at maaasahang mga sagot, anuman ang kahirapan ng iyong mga katanungan.
Answer:
In a closed shape, such as in our example, mathematical convention states that the letters must always be in order in a clockwise or counter-clockwise direction. Our shape can be described 'ABCDE', but it would be incorrect to label the vertices so that the shape was 'ADBEC' for example.
Explanation: