It is true. Perpendicular lines are what we call to two lines that intersect together forming a right angle or an angle measuring 90 degrees. You can easily determine this if you see a horizontal and a vertical line intersect together.
Rounded to the nearest ten-thousand: 20,000
Rounded to the nearest thousand: 24,000
5•1=5
5•2=10
5•3=15
5•4= 20
5•5=25
5•6=30
There are multiple more, just keep multiplying by a number higher than 4
Answer: Yeah sure no problem just post it