Adjacent means next to. So you're asking what sides of a triangle are next to the right angle of a triangle. That would be the 2 shorter sides of the triangle or 'legs' of the triangle. The hypotenuse (which is the longest side of the triangle) is directly across from the right angle.
Chat with our AI personalities
Two sides adjacent to a right angle.
Those are the triangle's "legs".
That's the cosine of the angle to which the 'adjacent' side is adjacent.
Sometimes as in a square, rectangle or a right angle triangle
It fits the description of a right angle triangle