GEOMETRY
posted by Johnny .
Angle C and angle D are vertical angles. Conclusion is that angle C and angle D are complementary. What is a counterexample of the conclusion?

GEOMETRY 
Steve
since vertical angles are equal, they are complementary only if they both are 45 degrees.
So, pick any other angle as a counterexample.
Respond to this Question
Similar Questions

geometry
state the reason for the conclusion 1) given: angle 1 is congruent to angle 2 conlusion: the measurement of angle 1 is equal to the measuremnt of angle 2. what is the reason for the conclusion? 
physics and geometry
ok proving that thest two angles are equal Gesh almost done lol :O h t t p : / /w w w .a n g e l f i r e. c o m / s ta r s / d h s ph y s i c s / f r ic t i o n . j p g ok How to prove this? 
Geometry
Use the Law of Detachment to draw a conclusion. If the measures of two angles have a sum of 90 degrees, then the angles are complementary. measure of angle A + measure of angle B = 90. Could someone help explain the Law of Detachment … 
9th grade Deductive Reasoning Math
Given: Angle A and Angle C are complementary to Angle B. Conclusion: Angle is congruent to Angle C. Determine whether each conclusion is valid based on the true conditional given. If not, write invalid. Explain your reasoning. 
geometry
Write a flow proof:if angle 1 and angle 2 are vertical angles, and angle 2 and angle 3 are complementary, then angle 1 and angle 3 are complementary. 
math
angle R & angle S are complementary angles..and angle U & and angle V are also complementary angles. if angle R = y2, angle S = 2x + 3, angle U = 2xy, and angle V = x1, find the values of x, y, angle R, S, U, & V 
math
angle R & angle S are complementary angles..and angle U & and angle V are also complementary angles. if angle R = y2, angle S = 2x + 3, angle U = 2xy, and angle V = x1, find the values of x, y, angle R, S, U, & V 
MATH
Angle C and Angle D are vertical angles. The conclusion is that angle C and angle D are complementary. Which is a counterexample of this conclusion. * 2 vertical angles which are not complementary or * 2 complementary angles which … 
Geometry
Two lines intersect so that angle 1 and angle 3 are vertical angles, angle 2 and angle 4 are vertical angles, and angle 1 and angle 2 form a linear pair. how do you slove for x and find the measure of all the angles when angle 2= x … 
MathGeometry
"No rush this is study material" The intersection of roads P and Q creates a 71* angle. What are the complementary and supplementary angles of his inter section?