Mathematics
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OpenStudy (lollola):
Find the missing length
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OpenStudy (lollola):
|dw:1457720187437:dw|
ILovePuppiesLol (ilovepuppieslol):
we use the pythagorean theorem
ILovePuppiesLol (ilovepuppieslol):
\[A^2 + B^2= C^2\]
ILovePuppiesLol (ilovepuppieslol):
a and b are the 2 side lengths and c is the diagonal one that is the hypotenuse
ILovePuppiesLol (ilovepuppieslol):
so for this instance we plug in the numbers
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ILovePuppiesLol (ilovepuppieslol):
\[A^2+9^2=14^2\]
ILovePuppiesLol (ilovepuppieslol):
now we don't know A because it is the x value that we are trying to figure out
ILovePuppiesLol (ilovepuppieslol):
we know 9 squared its 81, and 14 squared is 196 through the use of a calculator, now we plug those in
ILovePuppiesLol (ilovepuppieslol):
\[A^2+81=196\]
ILovePuppiesLol (ilovepuppieslol):
now we subtract 81 from both sides to isolate the variable ;) so it becomes
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OpenStudy (lollola):
So now its just 196-81=A?
ILovePuppiesLol (ilovepuppieslol):
\[A^2=115\]
OpenStudy (lollola):
Ohhhh
ILovePuppiesLol (ilovepuppieslol):
no because A has to be squared
ILovePuppiesLol (ilovepuppieslol):
so can u find the square root of 115?
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OpenStudy (lollola):
10.72
ILovePuppiesLol (ilovepuppieslol):
yeah u can do that or round to the nearest whole
ILovePuppiesLol (ilovepuppieslol):
or tenth or whatever but thats how we get the answer
ILovePuppiesLol (ilovepuppieslol):
does that make sense?
OpenStudy (lollola):
Yes
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OpenStudy (lollola):
Thanks
ILovePuppiesLol (ilovepuppieslol):
ok! Glad i could help ^_^
OpenStudy (anonymous):
Il say is 9
OpenStudy (anonymous):
lol