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In the triangle, x = 3. Find y.

Mathematics
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have you studied Pythagoras theorem
?

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Other answers:

no not yet
ok you want to solve this using sin and cos
you should have done it right?
@dedderick the formula for pythagoran theorem is |dw:1360070556954:dw|
you can use the sin rule or the cos rule
ok
how which side to square
i meant what side do we square
i will give you the answer and then prove it for you
then i can understand it better
if x =3 in your case then y=\[3\sqrt{2}\]
now you should know that \[\sin 45 = \cos 45=\frac{ 1 }{ \sqrt{2} }\]
right
In any right triangle, you can use the Pythagorean Therom to solve for sides. In that triangle, x is 2 of the sides and equals 3. Pyhtagreons Therom is a^2+b^2=c^2 A and b are the x's in the diagram. So 3^2 + 3^2 is equal to 18= c^2 Then find the square root of 18 to solve.
do you agree with that rule
yes i understand now
the guy says he hasn't done Pythagoras theorem
so we had to go to a different ulternative
ok

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