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

Nuevos recursos

Rectangular Cross Sections
Solving 2x2 and 3x3 Systems Using Cramer's Rule
Isosceles Triangle Cross Sections
Slopes of Parallel Lines
Identifying Sine, Cosine, Tangent Ratios in Right Triangles (Quick)

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yadatak 2
rational feno
Challenge 2
thales 2
正八角形

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Estadística
Diferencia y pendiente
Ortocentro
Funciones Logarítmicas
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