If two lines are perpendicular, the statement that must be true is : D. The product of their slopes is -1
Lets say that a line has a slope of 2, the line which perpendicular to that line would have a slope of -1/2
Which means, the product would be 2(-1/2) = -1
hope this helps
Answer:
the cercumference is 144.513
Step-by-step explanation:
Answer:
ree
Step-by-step explanation:
For the first one it’s subtraction property of equality
