Continuing the right triangle scenario, which length is the side adjacent to the 20° angle?

Continuing the right triangle scenario, which length is the side adjacent to the 20° angle?

• A. 112.84
• B. 851.73
• C. 291.09
• D. 106.03

Answer: (C)

In a right triangle, the side adjacent to a given non-right angle is the leg that forms that angle together with the hypotenuse. It is not the side across from the angle (the opposite side), and it is not the hypotenuse itself. Here, the longest side is the hypotenuse, so the other two numbers are the legs. The leg that actually touches the 20° angle along with the hypotenuse has length 291.09, so that is the side adjacent to the 20° angle. The remaining leg, 112.84, would be opposite the 20° angle.

In a right triangle, the side adjacent to a given non-right angle is the leg that forms that angle together with the hypotenuse. It is not the side across from the angle (the opposite side), and it is not the hypotenuse itself. Here, the longest side is the hypotenuse, so the other two numbers are the legs. The leg that actually touches the 20° angle along with the hypotenuse has length 291.09, so that is the side adjacent to the 20° angle. The remaining leg, 112.84, would be opposite the 20° angle.