Answer:
12 different ways
Step-by-step explanation:
1 to 23
2 to 22
3 to 21
4 to 20
5 to 19
6 to 18
7 to 17
8 to 16
9 to 15
10 to 14
11 to 13
12 to 12
20
Using the rule of radicals
× ⇔
Simplify
= = × = 2
Thus
6 + 8
= 6(2 ) + 8
= 12 + 8
= 20
B
L and M - None of these
L and N - Skew
M and N - Perpendicular