Explain in Detail :Important Theorems
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 other two sides.
The area of a triangle is equal to one-half the base times the height.
The law of cosines states that in a triangle, the cosine of the angle between the two sides is equal to the sum of the cosines of the other two angles.
