Asked by Tim
                1. Write the following reversible as a biconditional:
If two perpendicular lines intersect, they form four 90* angles.
A) Two intersecting lines are perpendicular if and only if they form four 90* angles.
B) Two intersecting, perpendicular lines do not form four angles.
C) Four 90* angles are formed by intersecting lines.
D) Perpendicular lines do not intersect.
Is the answer C? I really am confused how to do this since these kind of statements aren't easy for me to understand. Thank you!
            
        If two perpendicular lines intersect, they form four 90* angles.
A) Two intersecting lines are perpendicular if and only if they form four 90* angles.
B) Two intersecting, perpendicular lines do not form four angles.
C) Four 90* angles are formed by intersecting lines.
D) Perpendicular lines do not intersect.
Is the answer C? I really am confused how to do this since these kind of statements aren't easy for me to understand. Thank you!
Answers
                    Answered by
            Steve
            
    Looks more like A to me.
    
                    Answered by
            T
            
    No the answer is not C, the answer would be A.
    
                    Answered by
            Tellurian
            
    Biconditional statements use the words "if and only if".
    
                    Answered by
            Jon 
            
    It is indeed A 
    
                    Answered by
            Zolita
            
    Yep it's A. And uhh the answers are 1C - if it is not raining I will not carry an umbrella 2A - two intersecting lines are perpendicular if and only if they form four 90 degree angles 3A - <DAB and <EAD are supplementary 4C - <FBY and <GBX 
    
                    Answered by
            Connexus 
            
    Zolita is 100% correct 
    
                    Answered by
            Unknown
            
    According to the Forms of Conditional Statement, Bicoditional Statement form is (p if and only if q) so  A is the answer. Welcome!
    
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