Special Parallelograms

m∠1=

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G.9-12.6.E

m∠2=

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G.9-12.6.E

m∠3=

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G.9-12.6.E

m∠4=

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G.9-12.6.E

m∠5=

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G.9-12.6.E

m∠6=

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G.9-12.6.E

ABCD is a rectangle. If DW=6 and BC=11, find DB.

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G.9-12.6.E

ABCD is a rectangle. If DW=6 and BC=11, find AC.

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G.9-12.6.E

ABCD is a rectangle. If DW=6 and BC=11, find AB.

Mathematical Equivalence

ON

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G.9-12.6.E

​ Determine if each statement below describes a rectangle, a rhombus, both, or neither.

a.Diagonals are congruent. ​ (a)  

b.Diagonals make two 45˚ angles at each vertex. ​ (b)  

c.Diagonals cut the four vertex angles in half. ​ (c)  

d.A single diagonal creates two congruent triangles. ​ ​ (d)  

​ e.Diagonals create four congruent triangles.​ (e)  

• Rhombus
• Neither
• Both
• Rectangle

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G.9-12.6.E