Properties of Polygons 2025-2026

Which is NOT a property of a parallelogram?

• Diagonals bisect each other
• Diagonals are congruent
• Both pairs of opposite sides are parallel
• Both pairs of opposite angles are congruent

Tags

CCSS.HSG.CO.C.11

The diagonals of a parallelogram always ... 

• are congruent
• are perpendicular
• bisect each other
• are parallel

Tags

CCSS.HSG.CO.C.11

In a parallelogram, opposite angles are ________.

• congruent
• supplementary
• consecutive
• parallel

Tags

CCSS.HSG.CO.C.11

Given the Parallelogram, Find the values of a and y.

• x = 23, y = 10

• x = 10, y = 23

Tags

CCSS.HSG.CO.C.11

If ABCD is a parallelogram, what is the length of BD? 

• 10
• 11
• 7
• 5

Tags

CCSS.HSG.CO.C.11

Given the Parallelogram, Find the values of x and y.

• x = 40 , y = 40

• x = 30, y = 30

• x = 40, y = 30

• x = 30, y = 40

Tags

CCSS.HSG.CO.C.11

Given the following Parallelogram, Find the values of angles 1,2 and 3.

• 1=30 , 2=82, 3=50

• 1=32, 2=98 , 3=50

• 1=30 , 2=98 , 3=50

• 1=30 , 2=98 , 3=40

Tags

CCSS.HSG.CO.C.11

What is the measurement of every angle in a rectangle?

• 180˚
• 60˚
• 90˚
• 20˚

Tags

CCSS.HSG.CO.C.11

If I draw the diagonal lines in a rectangle will they be angle bisectors? (think before you answer. Don't rush!)

• Yes
• No

Tags

CCSS.HSG.CO.C.11

If I draw the diagonal lines in a square, will those diagonals be angle bisectors?

• Yes
• No

Tags

CCSS.HSG.CO.C.11