Answer:
1. 110
2. 70
3. 70
4. 110
5. 110
6. 70
7. 70
Step-by-step explanation:
when to lines cross, opposite angles are equal so like 1 and 4 are equal
1, 4, and 5 are equal to 110
to find 2, 3, 6, and 7, subtract 110 from 180
Answer:
perpendicular
Step-by-step explanation:
start but putting each line into the standard line format
2x-y=-5
-y=-2x-5
y=2x+5
x+2y=-6
2y=-x-6
y=-(1/2)x-3
if lines are parallel the slopes would be the same. 2 is not equal to -1/2
if lines are perpendicular the slope of one would be the opposite inverse of the other.
negative inverse of 2 = - (1/2)
so the lines are perpendicular
Answer: 17mm
Step-by-step explanation:

Answer:
length(noun)
the linear extent in space from one end to the other; the longest dimension of something that is fixed in place "the length of the table was 5 feet"
duration, length(noun) continuance in time "the ceremony was of short duration"; "he complained about the length of time required"
length(noun)
the property of being the extent of something from beginning to end
"the editor limited the length of my article to 500 words"
distance, length(noun)
size of the gap between two places
"the distance from New York to Chicago"; "he determined the length of the shortest line segment joining the two points"
length(noun)
a section of something that is long and narrow
"a length of timber"; "a length of tubing"
Answer:
1/2.
Step-by-step explanation:
the slope of a line perpendicular to another is the reciprocal of the original lines slope.