Area of a Circle on Each Side of a Chord

Nov 2018
24
1
Iran
Thank you. We draw the bisector of $\theta$ so we divide it to two $\frac {\theta}{2}$s, but how can we prove that when bisector intersects Perpendicularly with c?
I mean to be confident about the "right triangle" stated in the article.
Thank you again.
 

skeeter

Math Team
Jul 2011
3,364
1,855
Texas
Given: $\Delta ABC$ is isosceles and $BD$ bisects $\angle{ABC}$
You prove it ...

Isosceles_vertex_bisector.jpg
 
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