Quiz

I C AN …• I DE N T I FY AN D DE FI NE T YPE S O F AN G LE S

• I C AN I DE NT I FY AN D DE SC RI B E G E O M E T RI C F I GU RE S

• I C AN U SE A PRO T RAC T O R T O M E ASURE AN G LE S

• I C AN U SE A PRO T RAC T O R T O DR AW ANG L E S

3.4 Using a Protractor

Journal page 68

Use only the information on the page to complete #1 and #2 with a partner

Acute Angle – an angle greater than 0° and less than 90°

Obtuse Angle – an angle greater than 90° and less than 180°

Why can’t we use words like narrow or wide in our definition?

Can an angle be acute and obtuse?

Other types of angles

Right Angle – exactly 90°

Straight Angle – exactly 180°

Reflex Angle – greater than 180° and less than 360° (“outside” of the angle)

(make angles with arms)

How will determining the type of angle before you measure help to confirm your measurement?

Template

Review SRB 145-146Trace quadrilaterals in notebook (categories)

and labelTrace other polygons in notebook and label

them