IXL - Checkpoint: Quadrilateral proofs (Geometry practice)

Quadrilateral

G

H

I

J

has vertices at

G

(

–

6

,

4

)

,

H

(

–

4

,

6

)

,

I

(

3

,

4

)

,

and

J

(

–

3

,

–

2

)

.

Is

G

H

I

J

an isosceles trapezoid? Why or why not?

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Not feeling ready yet? These can help:

O.6Properties of parallelograms

O.7Proving a quadrilateral is a parallelogram

O.8Properties of rhombuses

O.9Properties of squares and rectangles

O.13Classify shapes on the coordinate plane: justify your answer