Destinymasha
A 30°60°90° triangle has a hypotenuse with a length of 10. What is the length of the longer leg of the triangle?
A.
5
B.
C.
D.
20



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Hope_nicole
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what are options b and c?

sauravshakya
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dw:1363362393326:dw
Use trigonometric ratios to find a and b

sauravshakya
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can u?

Destinymasha
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dont think so

sauravshakya
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sin60 = a/10
a=10* sin60
a=5root3
Also,
sin30=b/10
b=10*sin30
b=5
Thus, a>b SO,
5 root3 is the longer leg

sauravshakya
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got it?

Destinymasha
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sort of, i wrote it in my notebook. Thank u !

Destinymasha
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K, makes sense

sauravshakya
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welcome