Angles and Measurement 1.3

When two rays share the same endpoint, ______________ is formed.

• an angle

• a triangle

• a line

• a chord

Tags

CCSS.4.G.A.1

The common endpoint of the two rays that form an angle is referred to as the _____________________.

• vertex

• skewing vector

• axis

• point of tangency

The two rays that form an angle are referred to as _______________.

• legs

• feet

• arms

• femurs

When we name an angle (like angle ABC above) the order of naming is ______________________.

• Side - Vertex - Side

• Side - Side - Vertex

• Vertex - Side - Side

• Side - Side - Side

How many angles are visible in the diagram?

• One

• Two

• Three

• Lots of them

These math tools that measure how “open” an angle is are called ____________________________.

• protractors

• compasses

• rulers

• angle guessers

Tags

CCSS.4.MD.C.6

On the face of a protractor there are degree markings that range from _______________.

• 0º to 180º

• 0º to 360º

• 0º to 270º

• 0º to 90º

Tags

CCSS.4.MD.C.6

An angle that measures exactly 180º is called a ________________ angle.

• straight

• long

• short

• right

Tags

CCSS.4.G.A.1

An angle that measures exactly 90º is _______________ angle.

• a right

• an acute

• an obtuse

• a scalene

Tags

CCSS.4.G.A.1

Angles that are less than 90º are __________________ .

• acute

• obtuse

• right

• skew

Tags

CCSS.4.G.A.1