#I need help with this Geometry problem.

26 messages · Page 1 of 1 (latest)

sick trail
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i used yandex to translate so it might be wrong at some words. If u have trouble understand them ill send u the original language.
Here’s the question:

Let ABC be the pointed triangle with the center of the outer line O. Call A ' the heart of the road
through C and exposure AB at A, call B ' is the center of the path that passes through A and contact BC at B, call
C ' is the center of the road that passes through B and exposes CA at C.
a) prove that the A'b'c'Triangle area is greater than or equal to the ABC Triangle area.
B) Call X, Y, Z respectively the perpendicular projection of O onto the lines a'b', B'c', C'a'.
Know that the XYZ triangle adjoins the straight lines in turn
A 'B', B'C', C' A'at points X', Y', Z' (X' X,Y 'Y,Z' Z). Prove that the
straight line ax', by', CZ' congruent.

midnight glacierBOT
#
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lavish topaz
sick trail
#

the original language is Vietnamese

lavish topaz
# sick trail here

Oh, Vietnamese? Okay. Vậy thì đợi một xíu để mình dich ra hen. Nếu là sai nói vậy nha.

There is a lot of strange language in the translated text, and I am certain that it is not correct.

lavish topaz
# sick trail well alright

Let ABC be an acute triangle with the center of the circumscribed circle O. Let A' be the center of the circle passing through C and touching AB at A, let B' be the center of the circle passing through A and touching BC at B, call
C' is the center of the circle passing through B and touching CA at C.

Yes?

If that's the case, I don't understand. I assume that the prime symbol in this case represents a transformation of the original triangle ABC, but how can A'B'C' all be the center of the circle? They are all points, correct?

lavish topaz
# sick trail well yep

Hm, okay. The two ideas I have are the usages of Excircles and Perpendicular Projections, but I cannot understand the problem well enough to interpret it correctly. Let me think about it for a while.

In the mean time, please take those two topics (Đường tròn bàng tiếp trong tam giác và hình chiếu) into consideration, as I think you will need them.

sick trail
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to solve this u need to draw them

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lemme show u

#

one sec

sick trail
#

@lavish topaz heres the picture

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5 circles is wild

urban lantern
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@sick trail 🖐️

sick trail
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could u help me with this

urban lantern
#

Yes, kindly add me

sick trail
sick trail
#

+close

loud cloakBOT
# sick trail +close
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loud cloakBOT
# loud cloak

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