1 + 2 = 3
The sum of 8 and 2 is 10
The sum of the internal angles of a heptagon is 900 degrees. This can be found be multiplying one angle, 128 and four sevenths, by 7.
The sum of the exterior angles of a convex polygon which has sides and one angle at each vertex is 360 degrees.
720 degrees
1 + 1 = 2
two (2)
The arithmetic mean.
an + an = 2an; an x an = an + n
The sum of 1/2 and 1 1/2 is 2.
There is only one prime number between 1 and 2, this is 2. The sum is therefore 2.
sum = 10 1/2 product = 5 difference = 51/2
A sum of 4 is more likely. Out of the 36 possible outcomes with a pair of 6-sided dice, only one will have a sum of 2 {1-1}. Three of the possibilities sum to 4. {1-3, 2-2, 3-1}