Four

Autor: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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Prism Drawn in 1-Point Perspective
Reflection across a line
Volume by Disk/Washer around y
Triangle with 3 Right Angles
Volume by Shells Around y

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centroid.ggt.
RotationEx2
Parallelogram is organized
day 79
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