For this case, we have to define perpendicular lines:

We have then:

Then, according to the definition we have:

We observe that the definition is fulfilled, therefore, the lines are perpendicular.
Answer:
b. they are perpendicular
Did you add the picture of the table? I do not see it :(
One fifth is the same as

and 15 is the same as

So just times across,

×

Resulting in(1 x 15= 15, and 5 x 1= 5),

If you need/want to reduce it, divide both numbers by 5. Leaving you with the simplified answer of

or 3. Either answer works. :)
If you have any questions, just comment them down below :)
Answer:
Step-by-step explanation:
Answer: triangle A
Step-by-step explanation:
Please give me brainliest