Question

Please please help me!!!!!

Answer 1

x=80

Explanation:

This is really simple especially since you have a right triangle, you can easily determine x using trigonometry.

The cosine of an angle in a right triangle is defined by it's adjacent side divided by the hypotenuse.

`\cos(50) = (51)/(x)`

The angle in question is 50, the hypotenuse is the side facing the 90° angle and the adjacent side is the one next to it.

By cross multiplication i can rewrite this as:

`x = (51)/( \cos(50) )`

`x = (51)/(0.64278)`

`x = 79.34`

Round to the nearest ten

`x = 80`