College of Admission Tests Multan

Triangles

Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.

Question: 4

Let ABC be a right triangle with sides A = 3 inches, B = 4 inches, and C = 5 inches. In degrees, what is the sinθ where θ is the angle opposite of side A?
  • .7
  • .6
  • .3
  • .4
  • .5

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Correct Answer: B

We are looking for sin(θ). Remember the definition of sin in a right triangle is the length of the opposite side divided by the length of the hypotenuse.

So therefore, without figuring out θ we can find sinθ=35=.6