Respuesta :

mseiry64

Answer:

40

Step-by-step explanation:

[tex] \frac{x}{80} = sin(30) = \frac{1}{2} [/tex]

if you don't know about sinuous and trigonometry, the opposite side of 30 degree angle in a rectangular triangle is the half of its hypotenuse.

The measure of x is 40.

Given,

A 30-60-90 triangle.

We need to find the measure of x.

What is sin function?

SinФ = perpendicular / hypotenuse

We have,

A right-angles triangle with hypotenus = 80 and base = x.

We also see that the upper angle is 30°.

So,

sin 30° = x / 80

1/2 = x/80

x = 80/2 = 40

We have,

x = 40

Thus the measure of x is 40.

Learn more about trigonometry functions here:

https://brainly.com/question/17332981

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