jaimel431
jaimel431 jaimel431
  • 21-05-2018
  • Mathematics
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What is the legth X of the side of the triangle below?

What is the legth X of the side of the triangle below class=

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mellissapeters
mellissapeters mellissapeters
  • 21-05-2018
the answer is D) 9.1. 
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carlosego
carlosego carlosego
  • 22-05-2018
For this case we have the following trigonometric relationship:
 cos (25) = x / 10
 From here, we must clear the value of x.
 We have then:
 x = 10 * cos (25)
 x = 9.06307787
 Rounding the result we have:
 x = 9.1
 Answer:
 x = 9.1
 option D
Answer Link

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