Axel cut the rectangle below into two triangles. Which of the following statements is true?
A.
The combined perimeter of the triangles is equal to the perimeter of the rectangle.

B.
The combined area of the triangles is less than the area of the original rectangle.

C.
The combined perimeter of the triangles is less than the perimeter of the rectangle.

D.
The combined area of the two triangles is equal to the area of the rectangle.