Pi

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COMDDIAROUNDMRCAIVDN ADVMVOGPSANTIAOQREEA NCVKDFBTTFFQQTNORLTV CIBNFCEANHXQEISBAOAV JRLHSKVODZJBUOTWTQMI YCCPMAPCCFYJUPAGIAIJ ZLTRIGONOMETRYNAORXG CEDIAMETERNIAATRNEON DDUBZUAWKVEJUTEMAARO NBUSQRIRUZSGHHMALRPD VKBZTYOXXKFEOSITGIPY YGEYWVXMRQVHKEPHDXAR CIRCUMFERENCEEVECABT KWTTUXJBTHKCZHHMNJYE EZOLOELSYPROHVVALYWM EDYZLARCHIMEDESTYZXO RDLUKHMARCHYNKMIPZRE GCDASWUKZXXDJIECMYYG TRABRADIUSHMOTESCTHT UFBTTKCBCQALDMRKEAFJ
1.
day
2.
irrational
3.
geometry
4.
ratio
5.
area
6.
Greek
7.
circumference
8.
Archimedes
9.
circle
10.
diameter
11.
march
12.
round
13.
mathematics
14.
radius
15.
approximate
16.
trigonometry
17.
pi
18.
constant