Express the length of the kite string in terms of trigonometric ratios. A) 70cos40° B) 70sin40° C) 40 sin70° D) 70 sin40°

Express the length of the kite string in terms of trigonometric ratios A 70cos40 B 70sin40 C 40 sin70 D 70 sin40 class=

Respuesta :

Answer:

D

Step-by-step explanation:

just took it

70 over sin40 degrees

Answer:

The length of the kite string in terms of trigonometric ratios, if we call it L, is [tex]L=\frac{70}{sin(40\°)}ft[/tex]

Step-by-step explanation:

As we have to use the trigonometric ratios, and knowing that in a right triangle the relation

[tex]hypotenuse*sin(angle)=opposite leg[/tex]

is valid. We call the hypotenuse as L, and we know the other two data (angle and opposite leg), so we have that

[tex]L*sin(40\°)=70ft\Leftrightarrow L=\frac{70}{sin(40\°)}ft[/tex]

Then,

[tex]L=\frac{70}{sin(40\°)}ft[/tex]

is the answer that we are looking for to solve the problem.