Chapter 18 Review

Classify the angle.

• Acute

• Obtuse

• Right

• Striaght

How many lines of symmetry does the figure have?

• 1

• 2

• 4

• 8

What is the diameter of a circle with a 7.6 cm radius?

• 3.3 cm

• 3.8 cm

• 14.2 cm

• 15.2 cm

What is the measurement of the angle?

• 82 degrees

• 98 degrees

• 108 degrees

• 156 degrees

Which best describes the figure?

• a point

• parallel lines

• perpendicular lines

• 2 line segments

The figure above has rotational symmetry. What is the angle measure of the smallest turn that matches the original figure?

• 72 degrees

• 85 degrees

• 110 degrees

• 180 degrees

Which set of figures appear to be similar but not congruent?

• 
• 
• 
• 

Which best describes a polygon with 4 equal sides and 4 equal angles?

• irregular pentagon

• regular hexagon

• irregular quadrilateral

• regular quadrilateral

Which shows the corresponding angle to angle O?

• angle W

• angle X

• angle Y

• angle Z

Which set of angles could form a triangle?

• 70 degrees, 45 degrees, 45 degrees

• 90 degrees, 55 degrees, 35 degrees

• 100 degrees, 50 degrees, 27 degrees

• 120 degrees, 60 degrees, 20 degrees