Informal Geom. Properties of Parallelograms

Parallelograms are ...

• triangles
• quadrilaterals
• pentagons
• hexagons

Tags

CCSS.5.G.B.4

The opposite sides of a parallelogram are...

• congruent
• perpendicular
• skew
• supplementary

Tags

CCSS.HSG.CO.C.11

The diagonals of a parallelogram always ... 

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

The opposite angles of a parallelogram are ...

• complementary
• congruent
• supplementary
• perpendicular

Tags

CCSS.HSG.CO.C.11

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

• 10
• 11
• 7
• 5

What is the value of x?

• 132
• 66
• 114
• 48

Tags

CCSS.HSG.CO.C.11

3 angles of a quadrilateral are 110, 120 and 50.  What is the measure of the 4th angle?

• 60
• 70
• 80
• 130

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

Which formula is used to find the sum of the interior angles of a polygon?

• 180
• 360
• (n-2)180
• n(n-3)/2

Solve for x. 

• 100
• 120
• 125
• 130