Which of the following are true statements.

The lengths 7, 40 and 41 can be sides of a right triangle. The lengths 12, 16, and 20 can be sides of a right triangle.
The lengths 7, 40 and 41 can be sides of a right triangle. The lengths 12, 16, and 20 can not be sides of a right triangle.
The lengths 7, 40 and 41 can not be sides of a right triangle. The lengths 12, 16, and 20 can be sides of a right triangle.
The lengths 7, 40 and 41 can not be sides of a right triangle. The lengths 12, 16, and 20 can not be sides of a right triangle.

Question

Which of the following are true statements.
 	
	The lengths 7, 40 and 41 can be sides of a right triangle.  The lengths 12, 16, and 20 can be sides of a right triangle. 
	The lengths 7, 40 and 41 can be sides of a right triangle.  The lengths 12, 16, and 20 can not be sides of a right triangle. 
	The lengths 7, 40 and 41 can not be sides of a right triangle.  The lengths 12, 16, and 20 can be sides of a right triangle. 
	The lengths 7, 40 and 41 can not be sides of a right triangle.  The lengths 12, 16, and 20 can not be sides of a right triangle.