What is the negation of the following statement?
An angle is a right angle.
A. If an angle is a right angle, then its measure is 90.
B. If an angle is not a right angle, then its measure is not 90.
C. An angle is an obtuse angle.
D. An angle is not a right angle.

Question

What is the negation of the following statement?
An angle is a right angle.
A.	If an angle is a right angle, then its measure is 90.
	B.	If an angle is not a right angle, then its measure is not 90.
	C.	An angle is an obtuse angle.
	D.	An angle is not a right angle.

directrix · Answer

Negation	
Indicates the opposite, usually employing the word not. The symbol to indicate negation is : ~

directrix · Answer

More info here: http://www.mathwarehouse.com/math-statements/logic-and-truth-values.php

directrix · Answer

@kcurri  What do you think the negation is?

anonymous · Answer

I forgot. And I didn't take any notes on it so I have no idea. I haven't done this in forever.

directrix · Answer

Read what I posted. in the first rectangle of this thread.

anonymous · Answer

Okay. Thanks.

directrix · Answer

What is the opposite of an angle is a right angle.

anonymous · Answer

So it is D.

directrix · Answer

Correct.

anonymous · Answer

Thanks for your help. :)

directrix · Answer

You are welcome.