Question

The equation sin (25 degree) equals StartFraction 9 Over c EndFraction can be used to find the length of Line segment A B.

Answer 1

Answer:

21.3 feet

Step-by-step explanation:

In the right triangle Δ ABC, the ∠ C = 90° and ∠ A = 25°.

Now, length of BC = 9 inches and length of the hypotenuse i.e. AB is c that we have to calculate.

Now, using trigonometry we can say that

$\sin 25^{\circ} = \frac{BC}{AB} = \frac{9}{c}$

⇒ $c = \frac{9}{\sin 25^{\circ}} = 21.29$ feet ≈ 21.3 feet. (Answer)

Answer 2

Answer: B) 21.3in

Step-by-step explanation:

That was the correct answer on my test.