SOLUTION: AC is a diameter B is a point on the circumference prove that x=90-y fig link http://i1383.photobucket.com/albums/ah310/rizwanmehboob66izvve/unnamed3

SOLUTION: AC is a diameter B is a point on the circumference prove that x=90-y fig link http://i1383.photobucket.com/albums/ah310/rizwanmehboob66izvve/unnamed3_zps92c59354.jpg

Question 935736: AC is a diameter B is a point on the circumference
prove that x=90-y
fig link
http://i1383.photobucket.com/albums/ah310/rizwanmehboob66izvve/unnamed3_zps92c59354.jpg
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

recall: Thales' theorem states that if , and are points on a circle where the line is a of the circle, then the angle < is a angle.
then triangle is a angle triangle
since the sum of all angles in a triangle is , then =>that proves
RELATED QUESTIONS
find angle x and/or angle y in this diagram C is the center fig link... (answered by MathLover1)

the diagram represent a simplified drawing of the timber cross-section of a roof.find the (answered by MathLover1)

Perform the indicated operation and expression lowest terms. Thanks for any help. (answered by CubeyThePenguin)
Perform the indicated operation and expression lowest terms. (answered by CubeyThePenguin)
Ri rides his bicycle to school every day.The diameter of his bicycle wheel is 70 cm when... (answered by checkley71)
Hello. I have the following question: In the figure W=X=Y=45 degrees. XB is... (answered by richard1234,robertb)
(answered by jpvn2015)
.fig aedc is a square.ba=bc and ae=ac. the area of aedc is 25cm2 and angle b =90 degrees... (answered by ikleyn)
Line AB is perpendicular to Line BN in the diagram at the right. What are the coordinates (answered by robertb)