Four

Author:yen23022006

If AB is parallel to DC, angle ABC is equal to angle CDA, and angle BCD is equal to angle DAB, and segment AX is equal to segment XC, then ABCD is a parallelogram. True

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apec
Shells
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Triangle with 3 Right Angles
Reflection across a line

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مركز ثقل المثلث
Olimpiada Slatina 1.
Untitled
#15 Construct 2 Circles Inside a 3rd

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Inequalities
Continuity
Intersection
Volume
Angles