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Mathematics 12 Online
OpenStudy (anonymous):

help please

OpenStudy (anonymous):

OpenStudy (anonymous):

@Arfney

OpenStudy (anonymous):

@geerky42

OpenStudy (anonymous):

@robtobey

OpenStudy (anonymous):

ok @Arfney

geerky42 (geerky42):

... actually... if a+b is less than c, then you cannot make triangle

OpenStudy (anonymous):

Yes, sorry what geerky42 said.

OpenStudy (anonymous):

so can you help me more @geerky42

geerky42 (geerky42):

Here's why:|dw:1404347753395:dw|

OpenStudy (anonymous):

ok

geerky42 (geerky42):

So which choice has lengths that cannot be side of triangle?

OpenStudy (anonymous):

D

geerky42 (geerky42):

let start with A. we have length 1, 3, and 5. we can see that 1+3=4, which is less than 5|dw:1404347899326:dw| you can see it is impossible to make triangle with these lengths

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

i see

OpenStudy (anonymous):

@geerky42

OpenStudy (unklerhaukus):

for the second question , use the fact the the largest side of the triangle is opposite to the largest angle

OpenStudy (unklerhaukus):

(and the smallest side is opposite the smallest angle [and the middle side is opposite to the middle angle])

OpenStudy (anonymous):

ok so would it be C and A @UnkleRhaukus

OpenStudy (unklerhaukus):

i dont think so

OpenStudy (anonymous):

wat do u think it is

OpenStudy (anonymous):

@UnkleRhaukus

OpenStudy (unklerhaukus):

for the first question or the second one?

OpenStudy (anonymous):

both

OpenStudy (unklerhaukus):

for the first one, follow the advice of @geerky42 `if a+b is less than c, then you cannot make triangle` in which of the options is \(a+b < c\) ?

OpenStudy (anonymous):

what do u think it is

OpenStudy (anonymous):

@geerky42 do you no wat it is

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