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OpenStudy (anonymous):
an isosceles triangle has a vertical angle of 108 degree and a base 20m long. Calculate its altitude.
plz reply me fast
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OpenStudy (anonymous):
Do 108 + 20 x 2 I think
OpenStudy (anonymous):
no it is from trigonometry
OpenStudy (mathmath333):
|dw:1411730827284:dw|
OpenStudy (anonymous):
Well at least he got 100
OpenStudy (anonymous):
no it is not the answer, the answer is 7.27cm
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OpenStudy (anonymous):
this question is from D3 Ex:10f Q:2
OpenStudy (mathmath333):
u imagine a base of 20 meters and height of just 7.27 cm????
OpenStudy (mathmath333):
ok wait
OpenStudy (mathmath333):
oh my god u r right
OpenStudy (anonymous):
Lol
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OpenStudy (mathmath333):
\(\large\tt \color{black}{tan54=\dfrac{10}{x}}\)
\(\large\tt \color{black}{x=\dfrac{10}{tan54}}\)
\(\large\tt \color{black}{x=\dfrac{10}{1.37}}\)
\(\large\tt \color{black}{x=7.26~~m}\)
OpenStudy (mathmath333):
and its unit will be in meter
OpenStudy (mathmath333):
sry lol
OpenStudy (anonymous):
for what?
OpenStudy (mathmath333):
\(\Huge\tt \color{black}{\ddot\smile}\)
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OpenStudy (anonymous):
I meant he got 100 percent on his test
OpenStudy (anonymous):
no this is not test it is assiement
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