Question

Can someone help me solve this?

What is side b? Thank you

Answer 1

b ≈ 39.32 ft

Explanation:

Using the cosine ratio in the right triangle

cos35° =
`(adjacent)/(hypotenuse)` =
`(b)/(c)` =
`(b)/(48)` ( multiply both sides by 48 )

48 × cos35° = b, thus

b ≈ 39.32 ft ( to 2 dec. places )

Answer 2

The answer is

b = 39.32 feet

Explanation:

To find side b we use cosine

cos ∅ = adjacent / hypotenuse

From the question

side c is the hypotenuse

side c = 48 feet

side b is the adjacent

∅ = 35°

We have

cos 35 = b/c

cos 35 = b / 48

b = 48 cos 35

b = 39.319

b = 39.32 feet to 2 decimal places

Hope this helps you