Respuesta :

Space

Answer:

A. 5/13

General Formulas and Concepts:

Pre-Algebra

  • Simplifying Fractions

Geometry

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Identify

Angle θ = C

Adjacent Leg = 10

Hypotenuse = 26

Step 2: Find ratio

  1. Substitute [cosine]:                      cos∠C = 10/26
  2. [Fraction] Simplify:                       cos∠C = 5/13

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