The world has no point without geometry. Quick Review The world has no point without geometry.

Question This is a ______ Polygon

Group Definitions Equilateral Polygons Equiangular Polygons

Group Definitions Angle Bisectors 45° 20° B A C D E F G H Not Angle Bisectors So outta curiosity if this whole angle is 54°, how big is this one? How do you write stuff here? B E

Group Definitions Notice it’s LINEar angles. Gotta be a line in there. Not Linear Angles 40° 140° 80° 100° Notice it’s LINEar angles. Gotta be a line in there.

120° 60° B E l m Group Definitions Supplementary Angles Not Supplementary Angles Talk briefly about parallel lines here and how to write ‘em. B E H G

Group Definitions B E 30° 60° H G B E Complementary Angles Not Complementary Angles H G B E

Group Definitions C A D F Vertical Angles Not Vertical Angles B E H G

Group Definitions 91° C B A Obtuse Angles Not Obtuse Angles

88° C B A Group Definitions Acute Angles Not Acute Angles

Group Definitions Alright, we’re gonna define eight terms. 90° C B A Group Definitions Right Angles Not Right Angles Alright, we’re gonna define eight terms. Show how we can write m(angle)B = 90° and AB (perp symbol) BC

Group Notes Have them fold their notepaper into sixths. Right triangle Obtuse triangle Acute triangle Scalene triangle Isosceles triangle Equilateral triangle Have them fold their notepaper into sixths.

Basketball a b c 5) Spell that shape! s - c - a - l - e - n - e

8. Basketball a b c 6) Spell that shape! i - s - o - s - c - e - l - 7) Name this angle A B C Angle BAC

8. Basketball 8) AD is the bisector of BAC. What is the measure of BAD? D 110° B 55° C A 9) Name that shape! quadrilateral

B is the midpoint of AC. Find the length of AC. 1) AB = 6X and BC = 3X + 15

Fill in the blanks A line has ____ endpoints and _____ midpoints Fill in the blanks A line has ____ endpoints and _____ midpoints. A segment has ____ endpoints and _____ midpoints. A ray has ____ endpoints.

Find x 2x + 4 6x

Find x 3x + 9 12x

Find the missing angle 28 ? 65

Which of the following would make a triangle? 3, 7, 10 532, 271, 262 1/2, 3/2, 2