# Geometry Shapes

Document Sample

```					  HUGH JOHN MACDONALD
Geometry
“Polygons and Angles”
NAME:_____________________________
ROOM #________
Page 1
GEOMETRY             “POLYGONS AND ANGLES”
HOW CAN YOU BE SUCCESSFUL

Word Webs: (What I know/pre-test)
(What I have learned/post test)
• Triangle (page 3)                    5 marks
• Quadrilateral  (page 4)              5 marks
• Pentagon   (page 8)                  10 marks

“Angles Can Be A Real Rip-off": (making discoveries)
• Triangle   (page 7)                   10 marks
• Quadrilateral   (page 7)              10 marks

“Interior Angles Of Polygons”: (finding patterns)
• Worksheet     (page 10)                 10 marks

“Challenge Yourself”: (using what we have learned)
• Triangle   (page 10)                    10 marks
• Quadrilateral (page 10)                 10 marks

“This Is How I Did”: (self evaluation) (page 11)
• Question #1                             5 marks
• Question #2                             5 marks
• Question #3                             20 marks

TOTAL:          100 MARKS
Page 2
WORD WEB

TRIANGLES

Page 3
WORD WEB

Page 4
What a rip-off
1. DRAW A TRIANGLE (try to
use up a large portion of the
grid paper)

2. LABEL THE THREE
ANGLES (example a,      b, c)

(example abc)

4. MEASURE EACH OF THE
THREE ANGLES AND WRITE
THE MEASURE ON EACH
ANGLE (example a = 37º)

6. RIP OFF THE THREE ANGLES

7. GLUE YOUR ANGLES ON TO
THE “ANGLES CAN BE A REAL
RIP OFF” PAGE.

Page 5
What a rip-off
(try to use up a large portion
of the grid paper)

2. LABEL THE FOUR
ANGLES
(example a, b, c, d)

3. NAME YOUR
(example abcd)

4. MEASURE EACH OF THE
FOUR ANGLES AND WRITE
THE MEASURE ON EACH
ANGLE (example a = 37º)

5. CUT OUT YOUR

6. RIP OFF THE FOUR ANGLES

7. GLUE YOUR ANGLES ON TO
THE “ANGLES CAN BE A REAL
RIP OFF” PAGE.

Page 6
ANGLES CAN BE A REAL RIP-OFF

The sum of the three angles you measured is    a=___     b=___     c =___       a+     b+ c=
The sum of your three ripped off triangle angles is____________
How close were you?________________

vertices here.

vertices here.

The sum of the four angles you measured is a = ___       b = ___        c = ___   d = ___   a+   b+ c+   d=
The sum of my ripped off quadrilateral angles is ________              How close were you?____________

Page 7
WORD WEB

PENTAGON

Page 8
INTERIOR ANGLES OF POLYGONS
NUMBER OF   NUMBER OF   NUMBER OF
SHAPE          DIAGRAM                                                          TOTAL NUMBER OF
SIDES      ANGLES     TRIANGLES
DEGREES BECAUSE...
We discovered that the sum of the three angles of a
TRIANGLE                                                                         triangle is always 180°
3           3           1

QUADRILATERAL       1                                                 triangle is 180° then the sum of the four angles of a
2        4           4           2              quadrilateral must equal 2 x 180° = 360°

PENTAGON         1   2   3

HEXAGON

HEPTAGON

OCTAGON

DECAGON

DODECAGON

CHALLENGE!! A 44 SIDED POLYGON IS CALLED A TETRACONTAKAITETRAGON. CAN YOU
CALCULATE WHAT THE SUM OF ITS INTERIOR ANGLES WILL BE?????? (Of course you can!!)
Page 9
CHALLENGE YOURSELF!
Draw the following triangle.
ghi Where       g=50°
h=70°
i= ? °

bcde
Where     b= 90°
c= 75°
d= ? °
Page 10                     e= 100°
THIS IS HOW I DID ABOUT ANGLES?                      NAME:____________________________________
1 Write about at least 5 things that you learned this week.

2 What I found difficult was…..

3. Place a star on the following scales, giving yourself a mark out of 5 for each category.

•    I WAS A HELPFUL COOPERATIVE PARTNER
1        2        3      4   5
•    MY WORK IS NEAT, CLEAR AND ORGANIZED
1        2        3      4   5
•    MY DIAGRAMS ARE NEAT AND CLEAR
1        2        3      4   5
•    MY COMPLETED WORK SHOWS A CLEAR
UNDERSTANDING OF ANGLES AND POLYGONS
1        2        3      4   5

Page 11

```
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