Answer:
[tex]\cos(A)=\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]\cos(A)=\frac{\text{the measurement of side that is adjacent to angle } A}{\text{the measurement of the hypotenuse}}[/tex]
[tex]\cos(A)=\frac{\sqrt{2}}{2\sqrt{2}}[/tex]
[tex]\cos(A)=\frac{1}{2}[/tex] (the factor [tex]\sqrt{2}[/tex] cancelled)
Answer:
Step-by-step explanation:
Triangle ABC is a right angle triangle.
From the given right angle triangle,
AB represents the hypotenuse of the right angle triangle.
With m∠A as the reference angle,
AC represents the adjacent side of the right angle triangle.
BC represents the opposite side of the right angle triangle.
To determine cosine of angle A, we would apply the cosine trigonometric ratio.
Cos θ = adjacent side/hypotenuse. Therefore,
Cos A = √2/2√2
Cos A = 2