Mathematics
11 Online
OpenStudy (anonymous):
ONLY HAVE 2 QUESTIONS XDD
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OpenStudy (anonymous):
Which set of side lengths defines a right triangle?
A.
4, 8, 9
B.
5, 9, 10
C.
6, 10, 13
D.
7, 24, 25
OpenStudy (anonymous):
Just use the Pythagorean theorem
OpenStudy (anonymous):
i came here for help yo XD
OpenStudy (anonymous):
i already did i got C
OpenStudy (anonymous):
And I'm helping you. C would be wrong. How did you get C?
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OpenStudy (anonymous):
I MEAN NOT C. B sorry.
OpenStudy (anonymous):
How did you get B then?
OpenStudy (anonymous):
a^2 + b^2 = C^2
OpenStudy (anonymous):
Now plug in the numbers in B for a b and c
OpenStudy (anonymous):
i still think its B XD
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OpenStudy (anonymous):
So you think 25+81=100?
OpenStudy (anonymous):
oh....A
OpenStudy (anonymous):
And why do you say A?
OpenStudy (anonymous):
bc im guessing at this point XD
OpenStudy (anonymous):
Well plug in the values in A for a b and c and tell me what you get.
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OpenStudy (anonymous):
its either A or D
OpenStudy (anonymous):
So..
XD
OpenStudy (anonymous):
Plug in the values in A for the Pythagorean theorem.
OpenStudy (anonymous):
finee.
OpenStudy (anonymous):
Yeah its A
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OpenStudy (anonymous):
Did you plug in the values? What did you get?
OpenStudy (anonymous):
wait lemme try again o.o
OpenStudy (anonymous):
4^2+8^2+9^2?
OpenStudy (anonymous):
No, it would be \[4^2+8^2=9^2\]
OpenStudy (anonymous):
161
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OpenStudy (anonymous):
Use the formula I just gave you. You do not add all three together.
OpenStudy (anonymous):
lmao
OpenStudy (anonymous):
80 = 81
WHAT XD
OpenStudy (anonymous):
Yeah, it doesn't so that means A is wrong
OpenStudy (anonymous):
okay D thanks one more XD
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OpenStudy (anonymous):
you would use Pythagorean theorem again
OpenStudy (anonymous):
10^2 + 12^2 = x^2
OpenStudy (anonymous):
224 =
OpenStudy (anonymous):
and then you would square root 224
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OpenStudy (anonymous):
15.6
OpenStudy (anonymous):
no its about 14.9
OpenStudy (anonymous):
noo o.o
OpenStudy (anonymous):
google that ishhh
OpenStudy (anonymous):
i did lol
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OpenStudy (anonymous):
its 14.966
OpenStudy (anonymous):
ur right
OpenStudy (anonymous):
XD
OpenStudy (anonymous):
lol i know :P