Answer: Because of Pythagorean theorem, in a right triangle, the square of A plus the square of B = the square of C puts the square of C in the square root, A and B are right angles, and C is the hypotenuse.
5 square plus 12 square = 13 square c = 13.
The general structure of I course includes (a) course plan, B course standard, C course arrangement and D textbook.
Abd, this question is simple.
Second, how to arran