43 is a prime number, so
it has factors only 1 and 43, You can write only 43*1=43.
Parallel never cross
perpendicular is a 90 degree angle
its neither if its not 90 degree or never crossing
Answer:

Step-by-step explanation:

Therefore, 
Okay so you have to figure out all the possible ways to get six or higher. between a 6 sided dice and a 4 sided dice. We do 6*24 to find all the possibilities.
The probability of getting a 6 or higher is 14/24

The additional information needed to prove that the triangles are congruent is ~ A