Question

Us

Find the missing side. Round to
the nearest tenth.
19
40°
Х
x = [?]
Enter

Answer 1

x = 14.55

Explanation:

Given that,

The hypotenuse of the triangle, H = 19

Angle,
`\theta=40^(\circ)`

We need to find the value of x. We can use trigonometry to find it such that,

`\cos\theta=(B)/(H)`

Where

B is base and H is Hypotenuse

We have, B = x and H = 19

So,

`\cos(40)=(x)/(19)\\\\x=19* \cos(40)\\\\x=14.55`

So, the value of x is equal to 14.55.