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20 questions
The interior angle sum of a quadrilateral is...
180
270
360
300
A
B
C
D
A
B
C
D
A
B
C
A
B
C
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
Use the properties of isosceles trapezoids to solve for angle R.
130 degrees
50 degrees
25 degrees
Can't tell
A
B
C
D
A
B
C
D
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