Question

Which equation can be used to find the length of AC?
10 in.
40B
O (10)sin(409) = AC
O (10)cos(40°) = AC
10
= AC
sin( 40°)
o cos1800) = AC

Answer 1

Answer:10 in 40° L 40B (10)sin(40°) = AC (10)cos(409) = AC sin 400) = AC ... Fill in the blank given o below you can conclude that so is conguent to.

Step-by-step explanation:

Answer 2

The equation that can be used to find the length of AC is $AC = 10 \cos(40)$

From the figure (see attachment), we have the following cosine ratio

$\cos(40) = \frac{AC}{AB}$

Substitute 10 for AB

$\cos(40) = \frac{AC}{10}$

Multiply both sides by 10

$10 * \cos(40) = \frac{AC}{10} * 10$

Evaluate the product

$10 * \cos(40) = AC$

Rewrite the equation as (i.e. Make AC the subject of the formula)

$AC = 10 * \cos(40)$

Evaluate the product

$AC = 10 \cos(40)$

Hence, the equation that can be used to find the length of AC is $AC = 10 \cos(40)$

Read more about right triangles at:

https://brainly.com/question/2217700