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Mathematics 19 Online
OpenStudy (anonymous):

is anybody good at proofs?

OpenStudy (anonymous):

@sleepyhead314 can you help me?

OpenStudy (sleepyhead314):

question first... I haven't done proofs in a long time

OpenStudy (anonymous):

|dw:1418776804328:dw| so the given is OM is perpedicular to LN, then the next step has a reason but no statement. The reason is if 2 angles are perpendicular, then they form four right angles. what would the statement be

OpenStudy (sleepyhead314):

"then they form four right angles" that would be saying something like "[these] angles are right angles" replace [these] with the correct name for the angles :)

OpenStudy (anonymous):

so would it be <M is congruent to <LMO

OpenStudy (anonymous):

@sleepyhead314

OpenStudy (sleepyhead314):

not just <M for the first

OpenStudy (sleepyhead314):

because <M can be two different angles

OpenStudy (sleepyhead314):

have toe be specific

OpenStudy (sleepyhead314):

the <LMO was right now name the other one like that

OpenStudy (anonymous):

so the other one would be <NMO

OpenStudy (sleepyhead314):

yes :)

OpenStudy (anonymous):

thanks i have another questions

OpenStudy (sleepyhead314):

ok

OpenStudy (anonymous):

so after that statement, theres another one with a reason without a statement. the reasons is right angle congruence theorem

OpenStudy (sleepyhead314):

that means that if two angles are both right angles then they are congruent?

OpenStudy (anonymous):

so would the statement be just <M

OpenStudy (sleepyhead314):

no statement would be [angle] is congruent to [angle] because of this right angle theorem

OpenStudy (anonymous):

oh. but i have no clue what it would be

OpenStudy (sleepyhead314):

"that means that if two angles are both right angles then they are congruent" what two angles did we just say were right angles? :P

OpenStudy (anonymous):

so its the same thing?

OpenStudy (sleepyhead314):

oh wait o-o for the first one it would have been [angle] and [angle] are right angles then this one would be [angle] is congruent to [angle]

OpenStudy (anonymous):

wait what

OpenStudy (sleepyhead314):

Statement: [angle] and [angle] are right angles Reason: If 2 angles are perpendicular, then they form four right angles. Statement: [angle] is congruent to [angle] Reason: right angle congruence theorem

OpenStudy (anonymous):

wait so what would be the statement for right angle congruence theorem and is <NMO congruent to <LMO still for the reason of if 2 angles are perpendicular, then they form 4 right angles?? Im confusedd!

OpenStudy (sleepyhead314):

sorry about that for the "then they form 4 right angles" you will have to state that "these angles are right angles" for the "congruence theorem" you will state that "these angles are congruent" does that make more sense? :/

OpenStudy (anonymous):

no

OpenStudy (sleepyhead314):

where'd I loose you?

OpenStudy (anonymous):

idk im just confused can we just start the whole proof over

OpenStudy (sleepyhead314):

yeah sure

OpenStudy (anonymous):

ok so 1.statement- segement OM is perpendicular to segment LN 1.reason-given 2. statement-? 2.reason-if 2 angles are perpendicular they they form 4 right angles so i need to fine the statement for 2

OpenStudy (sleepyhead314):

here is how you do it: when they give you the reason and want you to get a statement, you take the part After the "Then" in the reason and make it your statement so for "if 2 angles are perpendicular they they form 4 right angles" you take "then they form 4 right angles" so your statement would be "these angles are right angles"

OpenStudy (anonymous):

but what angles are right angles?

OpenStudy (sleepyhead314):

they are the ones we talked about earlier :) the two angles that I told you to be more specific with?

OpenStudy (anonymous):

<M and <LMO?

OpenStudy (sleepyhead314):

yes except a more specific <M

OpenStudy (anonymous):

so <NMO?

OpenStudy (sleepyhead314):

yes! so you have "<NMO and <LMO are right angles"

OpenStudy (anonymous):

ok next for 3. statement-? 3.Reason-right angles congruence theorem what about that one?

OpenStudy (sleepyhead314):

"congruence theorem" so you're going to say that something is congruent :)

OpenStudy (anonymous):

so <NMO and <LMO are congruent?

OpenStudy (sleepyhead314):

correct! :)

OpenStudy (anonymous):

yaayyyy!!! thank yoouuu!!

OpenStudy (sleepyhead314):

glad I could help :)

OpenStudy (anonymous):

if i get stuck on a question next tome i have homework can i tag you?

OpenStudy (sleepyhead314):

of course :)

OpenStudy (anonymous):

thanks!

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