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Mathematics 17 Online
OpenStudy (anonymous):

Using the diagram shown, select all that apply to the pair of angles, 1 and 2. https://clackamasweb.owschools.com/media/g_ima01_2014/3/rtad.gif acute right obtuse adjacent vertical complementary supplementary

OpenStudy (anonymous):

(there can be more then one)

OpenStudy (rational):

little square box means 90 degrees

OpenStudy (rational):

when an angle is 90 degrees, we call it a "right angle"

OpenStudy (rational):

in light of above information, what can you say about angle 1 ?

OpenStudy (anonymous):

that its a right angle

OpenStudy (rational):

Yes, what about angle 2, is that right too?

OpenStudy (anonymous):

yep

OpenStudy (rational):

why

OpenStudy (anonymous):

i think its adjacent too, right?

OpenStudy (rational):

you're correct

OpenStudy (anonymous):

what do you mean why?

OpenStudy (rational):

why do you think angle2 is right

OpenStudy (anonymous):

well because it looks like its a right angle...

OpenStudy (anonymous):

so it isnt?

OpenStudy (rational):

thats one phrase you should avoid in geometry

OpenStudy (rational):

"it looks like" never use it

OpenStudy (anonymous):

oh ok

OpenStudy (anonymous):

so it is or not?

OpenStudy (rational):

do you want to know the answer or want to understand how to figure out the answer

OpenStudy (anonymous):

both

OpenStudy (rational):

then tell me why do you think angle1 is right

OpenStudy (anonymous):

well because the square is 90*

OpenStudy (rational):

yes, but what has it anything to do with angle1 ?

OpenStudy (anonymous):

ok i got it.. its 90 because 90 +90 = 180

OpenStudy (rational):

Exactly! we call them "supplementary angles" when two angles add up to 180

OpenStudy (anonymous):

so thats it?

OpenStudy (rational):

what do you think

OpenStudy (anonymous):

i think yes.. just making sure..

OpenStudy (rational):

can you summarize what options you selected and why

OpenStudy (anonymous):

right adjacent supplementary

OpenStudy (anonymous):

thank you:)

OpenStudy (rational):

Correct.

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