Respuesta :
Answer:
The answer to your question is ST = 7.2
Step-by-step explanation:
Data
angle = 56°
hypotenuse = ST = ?
adjacent side = TU = 4
Process
Use trigonometric functions to solve this problem. The trigonometric function that relates the adjacent side and the hypotenuse is cosine.
cos α = [tex]\frac{adjacent side}{hypotenuse}[/tex]
Solve for hypotenuse
hypotenuse = [tex]\frac{adjacent side}{cos \alpha }[/tex]
Substitution
hypotenuse = [tex]\frac{4}{cos 56}[/tex]
Simplification and result
hypotenuse = 7.15
Answer:
Step-by-step explanation:
Triangle STU is a right angle triangle.
From the given right angle triangle
ST represents the hypotenuse of the right angle triangle.
With ∠T as the reference angle,
TU represents the adjacent side of the right angle triangle.
SU represents the opposite side of the right angle triangle.
To determine ST, we would apply the Cosine trigonometric ratio
Cos θ = adjacent side/hypotenuse. Therefore,
Cos 56 = 4/ST
0.5592 = 4/ST
ST = 4/0.5592
ST = 7.2 to the nearest tenth