SOLUTION: given: AD is perpendicular to FB, angle 1 is congruent to angle 3 prove: angle 2 is congruent to angle 4 this is the figure <a href="http://tinypic.com?ref=m8hgzs" target="

SOLUTION: given: AD is perpendicular to FB, angle 1 is congruent to angle 3 prove: angle 2 is congruent to angle 4 this is the figure <a href="http://tinypic.com?ref=m8hgzs" target="_blan

Question 338080: given: AD is perpendicular to FB, angle 1 is congruent to angle 3
prove: angle 2 is congruent to angle 4
this is the figure

Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Given AD is perpendicular to FB, you know
(angle4 + angle3 = 90)
(angle1 + angle2 = 90)
So then
90 = 90
(angle4 + angle3 = angle1 + angle 2)
You are told angle3 = angle1
thus
(angle4 + angle1 = angle1 + angle2)
(angle4 = angle2)
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