Question

What is the measure of x to the nearest degree?
8

Answer 1

We know that :

`\sf{\bigstar \ \ Cos\theta = (Adjacent \ Side)/(Hypotenuse)}`

From the figure, We can notice that :

Ф Adjacent side length = 8

Ф Hypotenuse length = 11

`\sf{\implies Cosx^(\circ) = (8)/(11)}`

`\sf{\implies x^(\circ) = Cos^(-1)\bigg((8)/(11)\bigg)}`

`\sf{\implies x^(\circ) = 43.34}`