Basic Geometric Ideas

What geometric idea is being represented by the blue figure?

• line segment

• ray

• line

• arrow

What is the name of the blue figure?

• ray AD

• ray A

• ray DA

• ray D

What is the vertex of angle EFD?

• point F

• point B

• point E

• point D

What kind of angle is angle EDA?

• right angle

• obtuse angle

• acute angle

• straight angle

What kind of geometric figure is B?

• dot

• blot

• point

• space

The following are right angles except?

• angle DFE

• angle AED

• angle DAE

• angle ADF

What kind of figure is formed by points ADFE?

• plane

• points

• triangle

• solid

What is the name of the red figure?

• line ED

• line segment DE

• line segment BD

• line DE

What kind of lines are ED and DF?

• intersecting lines

• perpendicular lines

• parallel lines

• joint lines

What is the name of the angle formed by ray AD and ray DF?

• angle EDF

• angle CDA

• angle ADF

• angle ADC