Question

Find the degree of the missing angle and round to the nearest whole degree

Answer 1

We are asked to determine the value of the angle. To do that we will use the function cosine, since this is defined as:

`\cos \theta=(adjacent)/(hypotenuse)`

Replacing the values:

`\cos \theta=(12)/(13)`

Now we use the inverse function of cosine to get the angle:

`\theta=\cos ^(-1)((12)/(13))`

Solving the operation:

`\theta=22.62`

Therefore, the angle is 23 degrees approximately.