Question

Evaluate the function requested. Write your answer as a fraction in lowest terms.

B
82
18
A
80
Find cos B.

Answer 1

Answer: A!!

Explanation:

Answer 2

`\cos B=(9)/(41)`

Explanation:

Given that,

Hypotenuse = 82 units

Base = 80 units

Height = 18 units

We need to find the value of cos B.

We know that,

`\cos\theta=(Base)/(Hypotenuse)`

For angle B, Hypotenuse = 82 units, Height = 80 units and base = 18 units

`\cos B=(18)/(82)\\\\\cos B=(9)/(41)`

Hence, the correct option is (A).