Holt Geometry Ch 6 Polygons & Quadrilaterals

The perimeter of a regular polygon is 36 cm. The length of one side is 4.5 cm. Which identifies the polygon?

• decagon

• octagon

• hexagon

• pentagon

The figure is a regular polygon. What is the value of x?

• 30

• 60

• 90

• 120

The exterior angles of a triangle measure 5x°, (3x + 38)°, and (x + 61)°. Which is the best classification of the triangle?

• acute

• obtuse

• equiangular

• right

Three vertices of parallelogram ABCD are A(−2, −2), B(2, 1), and C(0, 7). What are the coordinates of vertex D?

• (-4, 4)

• (4, 10)

• (0, -8)

• Not here

ABCD is a parallelogram. What is the perimeter of ∆AED?

• 5.5

• 29

• 19

• 44

Tags

CCSS.HSG.CO.C.11

In parallelogram ABCD, what is m∠DAB?

• 7°

• 70°

• 110°

• Not here

For what value of x will the quadrilateral be a parallelogram?

• 4

• 5

• 6

• 7

If line AD ∥ BC, which CANNOT be used to justify the statement that ABCD is a parallelogram?

• Line EF ⊥ segment AB and line EF⊥ segment CD

• m∠BEF + m∠EFC = 180°

• ∠ABD ≅ ∠CDB

• Line segments BA ≅ DC

The vertices of a quadrilateral are formed by the intersection of the lines for the equations y = −x − 3, y = −x + 3,

y = 3, and y = −3. Which term best describes the quadrilateral?

• parallelogram

• rectangle

• rhombus

• square

In parallelogram WXYZ, what is the value of x?

• 30

• 45

• 60

• Not here