In mathematical terms symmetry can depend on the binary operation defined on a set.
1.... No.politics 2.
1 and 8 are symmetrical both horizontally and vertically and 3 is symmetrical horizontally.
Look: 0 1 2 3 4 5 6 7 8 9 0 is doubly symmetrical (horizontal and vertical axes) 3 is almost symmetrical about the horizontal axis 8 is almost doubly symmetrical 1 is almost symmetrical, and is truly symmetrical in some sans-serif fonts (but not in all languages: cursive French has a long leading stoke on the left)
ask a teacher!
if AD-BC=1
8,99
Yes it has 1 line of symmetry
Only if it's drawn as a straight line. If the horizontal line at the base, and the sloping line at the top are added, it is not symmetrical.
Such shapes are known as symmetrical.
I belive 1%
Symmetrical primes are prime numbers that remain the same when their digits are reversed. The symmetrical primes between 1 and 100 are 2, 3, 5, 7, 11, 101. These numbers are prime because they are only divisible by 1 and themselves, and they are symmetrical because they read the same forwards and backwards.
No. Socks are not symmetrical.