FIR在Hexagon™ 8层次水净化器里有何作用?

In the figure, the side length of a regular hexagon and the perimeter of a small circle are the
same.If the circle rolls around the hexagon without sliding according to the direction of the arrow until it returns to the starting point.How many rounds does the circle go?求翻译!

英语翻译
If the area of the shaded region of the regular hexagon in the diagrambelow is 36 cm2,the area of the whole hexagon in cm2 is____.

pentagon ,hexagon ,octagon 在英语中分别是 五边形,六边形,八边形之意.单词中都有"agon",而前面的"pent","hex","oct"有什么渊源?

1.If the area of the shaded region of the regular hexagonin the diagram below is 36 cm2,the area of the whole hexagon in cm2 is_____.
2.In whatfollows,□ and Δ are different numbers.When 503 is divided by □ the remainderis 20.When 503 is divided by Δ the remainder is 20.When 493 is divided by □ x Δthe remainder is_____.
3.A lady,her brother,her son and her daughter(all related by birth) played
volleyball.The worst player's twin (who is one of the four players) andthe best player are of opposite sex.The worst player and the best playerare of the same age.Who cannot be the worst player(s)?
A) brother only B) daughter only
C) son and daughter only D) lady and daughter only E) lady only
福尔摩斯吧
1.A man is lookingat a photograph of someone.his friend asks who it is.the man replies,‘Brothers and sisters,I have none.but that man’s father is my father’s son’.Who is in the photograph?
2.Kevin marriedBerinie.Steven married Katie.Bob married Virginia.Who did Simon marry:Teresa,Charlotte or Lisa?
知识百花园
1.Which river is the longestriver in the world?
2.The four civilized countriesare ,,and
.

.hexagon-in1,.hexagon-in2 在css样式中的意思
.hexagon-in1,.hexagon-in2 {
x05overflow:hidden;
x05display:block;
x05width:100%;
x05height:100%;
x05-webkit-transform:rotate(-60deg);
x05 -moz-transform:rotate(-60deg);
x05x05x05transform:rotate(-60deg);