Geometry Iready

What is a protractor ?

• A thing

• A shared end point of the sides of an angle

• A tool used to measure an angle

• Angle with a measure

What is a right angle 

• Angle measure 90º

• A triangle 

• The middle point of an angle

What is a plane?

• lines that never intersect

• lines that pass through the same point

• an endless flat surface

• an exact location in space

What is this figure?

• Point

• Line

• Ray

• Line Segment

Name this angle

• Acute Angle

• Right Angle

• Obtuse Angle

• Straight Angle

Name these lines

• parallel lines

• perpendicular lines

• intersecting lines

What is the diameter?

• 8

• 16

• 10

• 4

What is the radius?

• 18

• 72

• 38

• 14

What is the circumference?

• 36

• 18π

• 108π

• 36π

find the area of the circle below.

• 100 cm

• 225 cm

• 9 cm

• 28.26 cm