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Octagon
八邊形
What is a shape that has 5 lines and 5 angles?
哪種形狀有五條邊和五個角？
It is a pentagon.
它就是五邊形。
What is a shape that has 8 lines and angles?
哪種形狀有八條邊和八個角呢？
It is an octagon.
它就是八邊形。
"Oct" means "eight" and "gon" means "shape".
“Oct”是“八”的意思，“gon”是“形狀”的意思。
Do you know what all the angles of an octagon add up to?
你知道八邊形的內角和是多少嗎？
They add up to 1080 degrees.
它的內角和為1080度。
A regular octagon has 8 lines all of the same length and all 8 angels are equal.
正八邊形的八條邊和八個角都相等。
Where can you find octagon shape of things?
你在哪里能找到八邊形的物體？
How about your ball-pens or pencils?
圓珠筆或鉛筆怎么樣啊？
They are all octagons.
它們都是八邊形。
Also, umbrellas and stop signs are octagons.
傘和停車標記也是八邊形。
