Geometry

GEOMETRY  

DANANG SETYADI

POINT  

POINT  N  

The   most   important   thing   to   remember   about   a   point   is   that   it   h a s   a b s o l u te l y   n o   d i m e n s i o n s — n o   length,   no   width,   no   depth.   It   is   simply   a   locaBon.  

LINE  

LINE  SEGMENT   CONGRUENT   SEGMENTS  

ANGLE  

Two   rays   joined   with   a   common   endpoint   form   an   angle.   The   common   endpoint   is   called  a  vertex.  

ANGLE  

ACUTE  ANGLE   RIGHT  ANGLE  

STRAIGHT  ANGLE   REFLEX  ANGLE  

OBTUSE  ANGLE  

FULL  ROTATION   ANGLE  

CIRCLE  

•  •  •  •  • 

RADIUS   CHORD   ARC   CIRCUMFERENCE   DIAMETER  

CIRCUMFERENCE  

SECTOR  

PLANE  FIGURE  

POLYGONS  

TRIANGLES  

T r i a n g l e s   a r e   classified   in   two   general   ways   :   by   their   sides   and   by   their  angles.  

BY  SIDES  

•  SCALENE   •  ISOSCELES   •  EQUILATERAL  

BY  ANGELS  

•  ACUTE   •  OBTUSE   •  RIGHT  

QUADRILATERAL   A  quadrilateral  is  a  four-­‐sided  polygon  with  four   angles.    The  five  most  common  types  are  the   parallelogram,  the  rectangle,  the  square,  the   trapezoid,  and  the  rhombus  

SOLID  FIGURE  

PRISM   TRIANGULAR  PRISM   CUBE  

PENTAGONAL  PRISM  

SQUARE  PRISM  

PYRAMIDS  

TRIANGULAR  PYRAMID  

SQUARE  PYRAMID  

PENTAGONAL  PYRAMID  

CYLINDER  

CONE  

SPERE  

MEASUREMENT  

We  can  measure  many  different   things,  but  mostly  we  measure   Length,  Area,  Volume,  and  Mass  

Metric  Length  

We  can  measure   how  long  things   are,  or  how  tall,   or  how  far  apart   they  are  

Example:  This  fork  is  20  cenBmeters  long  

These  are  the  most  common   measurements:  

•  •  •  • 

Milimeters   CenBmeters   Meters   Kilometers  

Metric  Area   These  are  the  most  common  measurements   of  area  (from  smallest  to  largest):  

•  •  •  •  • 

Square  Millimeter   Square  CenBmeter   Square  Meter   Hectare   Square  Kilometer  

Area  of  Plane  Shapes  

Metric  Volume   These  are  the  two  most  common   measurements:  

•  Milliliters   •  Liters  

Other  Volume  measurements  

•  Cubic  Meter   •  Megaliters   •  Cubic  CenBmeter   (cc)   •  Cubic  Millimeter  

Metric  Mass   Mass:  how  much  ma`er  is  in  an  object    

•  Grams   •  Kilograms   •  Tonnes  

Weight  or   Mass…?