Mathematics, 25.07.2021 22:30 pupucitomarron
Given: BE and AD are altitudes (intersecting at H) of triangle ABC, while F, G, and K are midpoints of AH, AB and BC, respectively. Prove: angle FGK is a right angle.
Answers: 2
is an altitude of a triangle 
, it is perpendicular to 
(since the triangle ). 
and 
are the midpoints, then the line 
and the line 
. The line 
must be parallel to the line 
. The line 
is parallel to BH and is perpendicular to AC.
parallel to 
is perpendicular to 
is a right angle.
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Given: BE and AD are altitudes (intersecting at H) of triangle ABC, while F, G, and K are midpoints...
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