2^2. equals 1 plus 2 plus 1 equals 4
3^2. " 4 " 2 " 3 " 9
4^2. " 9 " 2 " 5 " 16
5^2. " 16 " 2 " 7 " 25
6^2. " 25 " 2 " 9 " 36
7^2. " 36 " 2 " 11 " 49
8^2. " 49 " 2 " 13 " 64
9^2. " 64 " 2 " 15 " 81
10^2. " 81 " 2 " 17 " 100
11^2. " 100 " 2 " 19 " 121
12^2. " 121 " 2 " 21 " 144
27. How many inches are there in the diagonal of a cubic foot? and
how many square inches in a superficies made by a plane through two
opposite edges of the cube?
FATHER (who has helped his son in his arithmetic at
home)--“What did the teacher remark when you showed him your sums?”
JOHNNY--“He said I was getting more stupid every day.”