Geometry 1

AD is a median of a triangle ABC and O is the centroid such that AO = 10 cm. The length of OD (in cm) is

• 4

• 5

• 6

• 8

What does the image show? 
(The whole thing, not just the points)

• a ray
• a line
• a line segment
• a point

What type of angle is this?

• reflex angle
• right angle
• acute angle
• obtuse angle

What shape is this?

• Octagon

• Pentagon

• Hexagon

• Rectangle

Which of the following is NOT a name of a line?

• line m

•  $\overleftarrow{W}\overrightarrow{X}$  

•  $\overleftarrow{X}\overrightarrow{Y}$  

• line x

What is a line?

• a straight path of points that goes on and on in two directions
• an endless flat surface
• an exact location in space
• lines that never intersect

What shape is this?

• Trapezoid

• Rectangle

• Pentagon

• Square

Find the perimeter:

• 10

• 12

• 8

• 14

An angle whose measure is 180⁰ is called______angle

• Right

• Relfex

• Straight

• Acute