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Answer:

sinθ = 4/5

General Formulas and Concepts:

Trigonometry

  • [Right Triangles Only] SOHCAHTOA  
  • [Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Define

Identify variables

Angle = θ

Opposite Leg = 4

Hypotenuse = 5

Step 2: Find

  1. Substitute in variables [sine]:                                                                              sinθ = 4/5

Answer:

4/5

Step-by-step explanation:

The sine of the angle theta is the ratio   opposite side / hypotenuse, which

here is

sin theta = 4 / 5

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