What is "given right triangle def?

A right triangle is a type of triangle that has one angle measuring 90 degrees. This angle is known as the right angle. In a right triangle, the side opposite the right angle is called the hypotenuse, while the other two sides are called the legs.

Given a right triangle DEF, we can use the Pythagorean theorem to find the length of the sides of the triangle. The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the two legs.

So, if we know the lengths of two sides of the triangle, we can use the Pythagorean theorem to find the length of the third side. This can be useful in solving problems involving right triangles, such as finding missing side lengths or angles.