Geometry
7 Online
OpenStudy (elisaneedshelp):
What is sin(R) ?
a. 3/5
b. 3/4
c. 4/5
d. 4/3
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OpenStudy (elisaneedshelp):
ganeshie8 (ganeshie8):
familiar wid SOH-CAH-TOA ?
OpenStudy (elisaneedshelp):
yes
ganeshie8 (ganeshie8):
good, whats the `sin` ratio ?
OpenStudy (elisaneedshelp):
opp/hyp
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OpenStudy (solomonzelman):
\[3^2+4^2=5^2\]and the multiple of this exact triple is\[6^2+8^2=10^2\]
\[Sin=\frac{Opposite}{Hypotensue}\]
ganeshie8 (ganeshie8):
yes so start by figuring out the opposite/adjacent/hypotenuse first
OpenStudy (elisaneedshelp):
so with the triple 2*3 is 6 and 2*4 is 8 and 2*5 is 10 so 3 4 and 5 are the opp adj and hyp
OpenStudy (elisaneedshelp):
i can choose whichever angle to do this?
OpenStudy (elisaneedshelp):
would it be 3/5?
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ganeshie8 (ganeshie8):
yes and 3/5 is right
ganeshie8 (ganeshie8):
it works because angles dont change by scaling
OpenStudy (elisaneedshelp):
And so do you notice any traps here in this problem that i could write?
ganeshie8 (ganeshie8):
no traps, everything looks fine this time :)
ganeshie8 (ganeshie8):
the little square box at the angle S corner clearly tells you that S is a right angle
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ganeshie8 (ganeshie8):
So no traps for this particular problem
OpenStudy (elisaneedshelp):
I think i really only have 3 more problems i need help with for now. Can you help me with them?
ganeshie8 (ganeshie8):
sure, ask
OpenStudy (elisaneedshelp):
do you want it here or on a new question?
ganeshie8 (ganeshie8):
post it here...
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OpenStudy (elisaneedshelp):
What line segment must be the longest?
f. NP
g. NL
h. LM
i. MN
OpenStudy (elisaneedshelp):
the diagonal? it looks confusing
OpenStudy (elisaneedshelp):
what do you think?
ganeshie8 (ganeshie8):
lol it looks tricky @BSwan wana try this ?
OpenStudy (anonymous):
|dw:1400508785257:dw|
so whats the QN ?
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OpenStudy (elisaneedshelp):
There is no QN ... idk
OpenStudy (anonymous):
haha i mean whats the question ?
OpenStudy (elisaneedshelp):
Lol oh its What line segment must be the longest?
f. NP
g. NL
h. LM
i. MN
OpenStudy (anonymous):
|dw:1400509096138:dw|
OpenStudy (anonymous):
|dw:1400509190805:dw|
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OpenStudy (elisaneedshelp):
So do you think its LN?
OpenStudy (anonymous):
i think its MN