highschoolmom2010
Find the value of each variable. If your answer is not an integer, express it in simplest radical form.



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jhonyy9
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do you know sin45 = ?

jhonyy9
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value numeric

highschoolmom2010
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no clue ^^

jhonyy9
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why you needed learning it sure

jhonyy9
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ok
but hope you know that the sinus of an angle is equal opposite side divide hypothenuse
yes ?

highschoolmom2010
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\[10=\sqrt{2}*x\]
\[x=\frac{ 10 }{ \sqrt{2}}\]
\[x=\frac{ 10 }{ \sqrt{2} }*\frac{ \sqrt{2} }{ \sqrt{2} }\]
\[x=\frac{ 10\sqrt{2} }{ 2 }\]
\[x=5\sqrt{2}\]

highschoolmom2010
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@jhonyy9 ive never done that before

highschoolmom2010
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"but hope you know that the sinus of an angle is equal opposite side divide hypothenuse"

jhonyy9
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sin45 = sqrt2 /2

jhonyy9
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so than using this you can rewriring it
sqrt2 x
 = 
2 10
cross multiplie
10sqrt2 = 2x divide by 2
and will get
x = 5sqrt2
right ?

phi
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yes, you did it correctly. Jhonny is using trigonometry, which you have not studied yet

highschoolmom2010
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thats my next lesson...... :D cool so i understand it :DD
ty @phi @jhonyy9

jhonyy9
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yw