Finding the value of cosine of my given right triangle

The video tutorial explains how to find the cosine of angle C in a right triangle. It begins by defining cosine as the ratio of the adjacent side to the hypotenuse. The tutorial then identifies the hypotenuse as the longest side opposite the right angle and the adjacent side as the one connecting angle C and the right angle. The cosine of C is calculated using the ratio of the adjacent side (6) to the hypotenuse (10), which is then reduced to 0.6 and further to the nearest thousandth.

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

• The ratio of the opposite side to the adjacent side

• The ratio of the opposite side to the hypotenuse

• The sum of all sides of the triangle

• The ratio of the adjacent side to the hypotenuse

Which side of a right triangle is always the longest?

• Adjacent side

• Opposite side

• Hypotenuse

• Base

In a right triangle, which side is directly across from the right angle?

• Adjacent side

• Opposite side

• Hypotenuse

• Base

How do you set up the cosine ratio for angle C if the adjacent side is 6 and the hypotenuse is 10?

• 10/16

• 6/10

• 10/6

• 6/16

What is the cosine of angle C reduced to the nearest thousandth if the ratio is 6/10?

• 0.6

• 0.060

• 0.06

• 0.600