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37 votes
What is the value of x?

What is the value of x?-example-1
User Cutsoy
by
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2 Answers

26 votes
26 votes
  • CosØ=Base/Hypotenuse
  • cosx=17/20
  • x=cos^{-1}(17/20)
  • x=31.78°
  • x=31.8°

User PRIHLOP
by
2.9k points
5 votes
5 votes

Answer:

31.8 degrees

Given:

angle: x°

adjacent: 17

hypotenuse: 20

So use the cosine rule:

cos(x) = adjacent/hypotenuse

cos(x) = 17/20

x = cos^{-1} (17/20)

x = 31.8°