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GR 8 EXT
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Slide 1:
Slide
Math
Secondary Education
Age 12
This lesson contains
22 slides
, with
interactive quizzes
and
text slides
.
Lesson duration is:
40 min
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Items in this lesson
Slide 1 - Slide
Slide 2 - Slide
Slide 3 - Slide
The formula to find the sum of interior angles of a triangle is (n-2) x 180
TRUE
FALSE
Slide 4 - Poll
The sum of interior angles of a pentagon is _____
A
900 degree
B
180 degree
C
360 degree
D
540 degree
Slide 5 - Quiz
Text
Slide 6 - Slide
Slide 7 - Slide
Slide 8 - Slide
timer
5:00
Slide 9 - Slide
Slide 10 - Slide
Slide 11 - Slide
Write your conclusion about the sum of exterior angles of any polygon.(Group wise)
timer
2:00
Slide 12 - Open question
www.geogebra.org
Slide 13 - Link
Geogebra Activity
https://www.geogebra.org/m/FKDa43gU
timer
3:00
Slide 14 - Slide
Slide 15 - Slide
The sum of exterior angles of any polygon is 360 degree
TRUE
FALSE
Slide 16 - Poll
timer
5:00
T
Slide 17 - Slide
padlet.com
Slide 18 - Link
Padlet
https://padlet.com/soumyaajit/gr8ext-r4xy9wb14qbk1mc5
timer
4:00
Slide 19 - Slide
The sum of exterior angles of a decagon is _____
A
180 degree
B
90 degree
C
200 degree
D
360 degree
Slide 20 - Quiz
Find the number of sides of a regular polygon if each exterior angle is 72°.
A
9
B
6
C
10
D
5
Slide 21 - Quiz
ASSET
The exterior angle of a regular polygon is 36°. How many sides does it have?
A
20
B
25
C
30
D
10
Slide 22 - Quiz
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