Question

Approximate the unknown side x in the diagram.

A. 3.356
B. 5.222
C. 3.064
D. 4.737

Answer 1

= 3.356 cm

Explanation:

i know because i took the test an got an 80

1. 9.46

2. given

3. i didn't get it right but it is NOT 20.47

4. 51.1

5. 38.7

some test are different an may ask different question but this is what i got hope it helps make this year count

Answer 2

The answer to your question is x = 3.356 cm

Explanation:

This is a right triangle so we can use the Trigonometric functions to solve this problem.

Data

Ф = 40°

Adjacent side = 4 cm

Opposite side = x

Process

1.- We must know the lenght of the opposite side so we must use the tangent to solve it.

tangent Ф =
`(Opposite side)/(Adjacent side)`

2.- Solve it for Opposite side

Opposite side = tanФ x Adjacent side

Opposite side = tan 40° x 4

Opposite side = 0.839 x 4

Opposite side = 3.356

Opposite side = x = 3.356 cm