1.0 is an even number

2. the most popular favorite number is 7

like you see 7 oceans, 7 continent,7 wonders of earth

3. the number 4 is considered unlucky in much of asia

4. A pizza which has radius 'z' and height 'a` has volume = p+i+z+z+a

5. the world hundred is actually taken from the word "hundrath" which means 120 and not 100

6. the only that can not be represented in roman numerals is `zero'

[b]7.[/b]have you notice this,any two opposite sides of a die add up to seven

8. Pie never reapeat and never ends when writtenin decimal form,it's a rational number

[b]9.[/b]what comes after a million,billion,trillion sorry its not zillion its a quadrillion,quntillion,sextillion,septillion,octillion,nonillion,decallion and undecallion

10. 2 & 5 are the only primesto end with 2 or 5

11. An icosagon is a shape with 20 sides

12. Among all shapes with the same perimeter the circle has the largest area

13. Among all shapes with the same area the circle has the shortest perimeter

14. 40 when written "forty" is the only number with letter in alphabetical order while "one" is the reverse order

15. from 1 to1000,the letter A only appear in 1000

16. Abascus is considered the origin of calculator

17. A jiffy is an actual unit of time for 1/100th of a seconds

18. 50 is the smallest integar that can be expressed at the sum of two positive squares
49+1=50,25+25=50

19. have you heard of a palindrone numbers,it is a number that needs the same backward and forward eg.12421

20. 0.999=1
well lets prove it in two possible way
if N=0.999 then N divided by 9 is 0.111
express this as the equation
0.111=1/9
multiply both side by 9
0.999=1

younggenius1:
4. A pizza which has radius 'z' and height 'a` has volume = p+i+z+z+a

pi*z*z*a

younggenius1:
8. Pie never reapeat and never ends when writtenin decimal form,it's a rational number

*Pi never repeats and never ends when written in decimal form. It's an irrational number.

younggenius1:
20. 0.999=1
well lets prove it in two possible way
if N=0.999 then N divided by 9 is 0.111
express this as the equation
0.111=1/9
multiply both side by 9
0.999=1

How/why did you just express 0.111 as 1/9? That's incorrect.
0.111 as a fraction is 111/1000, not 1/9.
1/9 is actually 0.11111111111... aka 0.1 recurring.



Nice thread. Cheers.

younggenius1:
15. from 1 to1000,the letter A only appear in 1000

Wrong... It is from 1 to 100 cos letter A appears in 101 (One Hundred And One)