Answer: Mount Everest in Nepal
Explanation:
Answer:
The South China Sea
Explanation:
It is between China, Taiwan, Vietnam, the Philippines, and Malaysia.
If the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram. If a quadrilateral is a rectangle, then it is a parallelogram. If a parallelogram is a rectangle, then its diagonals are congruent. If one angle of a parallelogram is a right angle, then the parallelogram is a rectangle.