Find the value of cosine when given the angle

The video tutorial explains how to evaluate the cosine of 11 degrees. It begins by introducing the concept of cosine in relation to a right triangle, identifying the adjacent side and hypotenuse. The tutorial then explains the cosine function and how to use a scientific calculator to find the cosine of 11 degrees. Finally, it demonstrates rounding the result to the nearest thousandth, providing a complete understanding of the process.

What does the cosine of an angle represent in a right triangle?

• The ratio of the opposite side to the hypotenuse

• The ratio of the adjacent side to the hypotenuse

• The ratio of the opposite side to the adjacent side

• The sum of the adjacent and opposite sides

In a right triangle, which side is opposite the right angle?

• Opposite side

• None of the above

• Hypotenuse

• Adjacent side

What is the given angle in the problem discussed in the video?

• 11 degrees

• 10 degrees

• 12 degrees

• 13 degrees

What mode should the calculator be in to find the cosine of 11 degrees?

• Degree mode

• Scientific mode

• Graphing mode

• Radian mode

What is the cosine of 11 degrees rounded to the nearest thousandth?

• 0.979

• 0.980

• 0.982

• 0.981