3.14159265358979
1,4,9,25,36,49,64,81,100,121,144,169,196,225
15 and 30
To any set that contains it! It belongs to {-15}, or {sqrt(2), -15, pi, -3/7}, or all whole numbers between -43 and 53, or multiples of 5, or composite numbers, or integers, or rational numbers, or real numbers, or complex numbers, etc.
15 + 1 = 16, and 15 - 1 = 14, so the two numbers are 15 and 1.
16
If you mean the square root of 225 then it is 15
the sum of the first 15 prime numbers is 328 .
They are 25 and 49
is it used in squre units
75 square feet
The sum of the first 5 numbers is 15. 1+2+3+4+5=15
The sum of the first 15 positive even numbers is 240. (Simply square 15, then add 15 to the result: 15 x 15 = 225. 225 + 15 = 240).
The sum of the first 15 odd numbers is 225.
(1+15)*15/2first plus last times number of numbers then divide by two
3.14159265358979
1,4,9,25,36,49,64,81,100,121,144,169,196,225