A cylinder. If you imagine and draw it out it looks like a cylinder.
90 - 40 = 50
Complementary angles add up to 90 degrees.
If one angle is 40 degrees less than the other, you just put it into an equation where 40 is subtracted from 90.
The answer would then be 50 degrees.
To calculate slope, you can put the "rise" (the y-value) over the "run" (the x-value). In this case, we can see that would be 6/2, which reduces to 3/1, or more simply written, 3.
Therefore, the correct answer here would be 3.
Answer:
c as it is on a straight line