Interactive step-by-step animation using GeoGebra. Post your solution in the comment box below.

Level: Mathematics Education, High School, Honors Geometry, College.

Details: Click on the figure below.

## Tuesday, November 26, 2019

### Dynamic Geometry 1448: Simson Line

Labels:
animation,
circumcircle,
collinear,
GeoGebra,
line,
perpendicular,
Simson,
step-by-step,
triangle

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https://photos.app.goo.gl/NzRFo5HkwCWwGx3YA

ReplyDeleteAng BHFE = BAC + HFA (1)

Ang BHFE = BDE = BDC + CDE = BAC + CF1E (2)

From (1) & (2) => HFA = CF1E