dankness216 dankness216
  • 23-03-2018
  • Mathematics
contestada

(Please help, urgent).

What is the value of r?

Round your final answer to the nearest whole number.

Please help urgent What is the value of r Round your final answer to the nearest whole number class=

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1rstar
1rstar 1rstar
  • 25-03-2018
◆ APPLICATIONS OF TRIGONOMETRY ◆

[tex] Heya \: ! \: \\ \\ We \: know \: that \\ \\ \: \sin( \alpha ) = \frac{perpendicular}{hypotenuse} \\ \\ \sin(67.4) = \frac{12}{r} \\ \\ \\ also \: , \\ \\ \sin(67.4) = 0.9231 \\ \\ comparing \: both \: ,\\ \\ \frac{12}{r} = 0.9231 \\ \\ r = \frac{12}{0.9231} \\ \\ r = 13 \: \: \: \: \: ans.[/tex]
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