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help with kinds of angle pairs

i was absent for days due to sickness and we have a homework. i can't understand the book itself. please help me by explaining on how to get the answer to these questions.. thank you.

this is the figure:

Attachment 24593

these are the questions

Line r intersects lines x and y

1. Give as many vertical angles as you can see in the figure

if <1=30deg, give the measure of

2.) <2

3.) <3

4.) <4

Re: help with kinds of angle pairs

When you say "vertical angles" do you mean "pairs of vertically opposite angles"?

Re: help with kinds of angle pairs

Re: help with kinds of angle pairs

Surely you can count how many pairs of vertically opposite angles there are in this diagram...

Re: help with kinds of angle pairs

You made it already? I think this is so simple.