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Find the value of each variable using sine and cosine. Round your answers to the nearest tenth​

Find the value of each variable using sine and cosine. Round your answers to the nearest-example-1
User Ctacke
by
7.6k points

1 Answer

3 votes

The values of x and y are 9.5 units and 15.3 respectively.

Using the parameters given for our Calculation;

  • θ = 32°
  • x = opposite side
  • y = Adjacent side
  • 18 = Hypotenus

Using trigonometric concept;

Sin(θ) = opposite/ Hypotenus

Now we have ;

sin(32) = x / 18

x = 18 * sin(32)

x = 9.54 ≈ 9.5 units

To solve for y :

Cos(θ) = Adjacent / Hypotenus

Now we have ;

cos(32) = y / 18

y = cos(32) × 18

y = 15.26 ≈ 15.3 units

User Tomer Zeitune
by
7.3k points