Mathematics
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OpenStudy (tylermckinney16):
1.Explain what it means to solve a right triangle.
2.Create your own example problem.
3.Show the worked-out solutions to the problem you created.
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OpenStudy (welshfella):
1 to completely solve it means to find the measures of all 3 angles and sides, given some of these measures
OpenStudy (welshfella):
2 we might be given the triangle below
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OpenStudy (welshfella):
how could we find the length of the hypotenuse x?
OpenStudy (welshfella):
what theorem would we use to do this?
OpenStudy (tylermckinney16):
i think the trig one lol
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OpenStudy (welshfella):
yes you could use a trig identity but what about a well known geometrical method?
- it starts with a P.
OpenStudy (tylermckinney16):
Pemdas?
OpenStudy (welshfella):
No. He's a famous Greek mathematician and philosopher.
OpenStudy (welshfella):
c^2 = a^2 + b^2
OpenStudy (welshfella):
- for a right angled triangle where c = the longest side.
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OpenStudy (tylermckinney16):
ok
OpenStudy (welshfella):
Pythagoras
OpenStudy (tylermckinney16):
yeah lol i remember now.
OpenStudy (welshfella):
so can you work out what measure of x is?
OpenStudy (tylermckinney16):
i can try yeah hold on.
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OpenStudy (tylermckinney16):
is it 1?
OpenStudy (welshfella):
i don't think so - the longest side can't be 1 if the other 2 are 3 and 4
OpenStudy (tylermckinney16):
5?
OpenStudy (welshfella):
x^2 = 3^2 + 4^2
find x.
OpenStudy (tylermckinney16):
oh ok i got it hold on
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OpenStudy (tylermckinney16):
25
OpenStudy (welshfella):
x^2 = 25
so x = square root 25
OpenStudy (tylermckinney16):
So is that are answer?
OpenStudy (welshfella):
thats the value of the other side.
Now to find the angles you can use one of the trig ratios sin, cos or tan.
OpenStudy (tylermckinney16):
ok
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OpenStudy (welshfella):
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