What is "given right triangle pqr?

Given a right triangle PQR, here's some information:

• One of the angles, specifically ∠Q (or ∠P or ∠R depending on the triangle), is a right angle, meaning it measures 90 degrees.

• The side opposite the right angle is called the hypotenuse (in this case, PR if ∠Q is the right angle).

• The other two sides (PQ and QR if ∠Q is the right angle) are called legs or cathetus.

• The Pythagorean theorem applies to right triangles: a² + b² = c², where a and b are the lengths of the legs and c is the length of the hypotenuse.

• Trigonometric functions (sine, cosine, tangent) can be used to relate the angles and side lengths of the triangle.