Answer:

Step-by-step explanation:
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Answer:
11 2/3
Step-by-step explanation:
240-30
210
210/18
11
Answer:
4.5
Step-by-step explanation:
43-32+2-4= 9
9/2= 4.5
Hey there!
The answers are as follows:
7.)
m∠1 = 85
m∠2 = 95
m∠3 = 85
m∠4 = 85
8.)
m∠1 = 60
m∠2 = 120
m∠3 = 60
m∠4 = 120
9.)
they all equal 90
10.) No. Parallel lines do not cross each other, but these, if extended, would cross. You could use a protractor by measuring corresponding angles, and if they aren't equal, they aren't parallel.
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