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german
3 years ago
6

If ABC = ADC, which is NOT true by CPCTC ?

Mathematics
1 answer:
sdas [7]3 years ago
4 0
We cannot use CPCTC to show that BE is congruent to DE.

CPCTC refers to the angles and sides of two congruent triangles being congruent to their corresponding pieces.  The height of a triangle is not one of the given sides that counts in this.
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Rama09 [41]

Answer:

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_____

The chord is tangent to the inner circle, so makes a 90° angle with the radius to that tangent point. This tells you that the triangle shown is a right triangle. It also tells you that the short radius bisects the chord. The Pythagorean theorem can be used to find the length of the side not shown (half the chord length).

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7 0
4 years ago
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