The missing side of length x is 15 units after using the cos ratio in the right angle triangle.
What is trigonometry?
The branch of mathematics deals with the relations of the sides and angles of triangles and with the relevant functions of any angles.
Also, mathematics is concerned with specific functions of angles and their application to calculations.
There are six functions of an angle commonly used in trigonometry.
Their names and abbreviations are sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant (cosec).
Given that:
The right-angle triangle has one side given and one angle given.
Bye the use of trigonometry, we have
Cos Ф = Base/Hypotenuse
Base = x units
Hypotenuse= 17 units
Cos 26°= x units/17 units
x =17* Cos 26°
x=15.27 units ≈ 15 units
Therefore, the missing side of length x is 15 units.
Learn more about trigonometry here:
brainly.com/question/28189946
#SPJ1
