Geometry Problem
Level: Mathematics Education, High School, Honors Geometry, College.
Click the figure below to see the problem 717 details.
Monday, January 23, 2012
Problem 717: Intersecting Circles, Midpoint, Angle, Measurement
Subscribe to:
Post Comments (Atom)
x = Angle ADB
ReplyDelete(ADB is the angle subtended by arc AB at the circumference of the circle through A,D,B)
= Half of angle AO'B
(AO'B is the angle subtended by arc AB at centre O' of circle through A,D,B)
= Half of (180 deg - angle ACB)
(AO'BC is a cyclic quadrilateral)
= Half of (180 - 50) deg
= 65 deg
x=65 Degrees
ReplyDelete