], (GC World : Various Problems ,What will occur when something is added?)
Adding feet of perpendiculars to triangle
Let's draw a triangle.
And let's add perpendiculars from B and C to the respective opposite sides.
Can a similar triangle be made?
Or can you make a similar triangle to ¢ABC based on this figure?
It is good to explore with freehand.
Drawing by tool and exploring with moving
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