Perpendicular Intersections 2

Directions

In the picture Angle ADC and Angle BDC are congruent. What other details do we know about Angle ADC and Angle BDC? What relationship does Line AB and Line DC have?

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Untitled
seo tool
Task 1 (Ovdi)
Newton disc

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Integer_Programming_problem_old
Even and odd functions
Extreme values Ex.1
Example 2
Modul16-A_Lidiyana_SMPN1Meral
ORANIM unit circle

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Triangles
Pythagoras or Pythagorean Theorem
Statistical Characteristics
Logarithmic Functions
Cosine