Angles,%20Turns%20and%20Right%20Angles - PowerPoint PPT Presentation

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Angles,%20Turns%20and%20Right%20Angles

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Angles, Turns and Right Angles 900 Line A 900 Line A Angles, Turns and Right Angles 900 Line A Angles, Turns and Right Angles 900 Line A Angles, Turns and Right ... – PowerPoint PPT presentation

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Title: Angles,%20Turns%20and%20Right%20Angles


1
Angles, Turns and Right Angles
900
Line A
2
Angles, Turns and Right Angles
900
Line A
3
Angles, Turns and Right Angles
Line A
900
4
Angles, Turns and Right Angles
Line A
900
5
Angles, Turns and Right Angles
900
900
900
900
900 angle is also called right angle.
6
Angles, Turns and Right Angles
D
?
500
R
Q
Is DQR or RQD bigger than 900?
NO
7
Angles, Turns and Right Angles
B
1200
?
R
Q
Is BQR or RQB bigger than 900?
YES
8
Angles, Turns and Right Angles
B
?
600
P
Q
Is PQB or BQP bigger than 900?
NO
9
Angles, Turns and Right Angles
D
?
1300
P
Q
Is PQD or DQP bigger than 900?
YES
10
C
Angles, Turns and Right Angles
D
B
A
E
R
P
Q
_____ is smaller than a right angle. It is 20o.
PQA
_____ is smaller than a right angle. It is 50o.
DQR
or PQB
_____ is greater than a right angle. It is 130o.
BQR
or PQD
_____ is greater than a right angle. It is 160o.
RQA
11
Angles, Turns and Right Angles
1/4
1/4
1/4
1/4
12
Angles, Turns and Right Angles
90o
A ¼ turn is ______.
quarter turn
1 right angle
____________.
13
Angles, Turns and Right Angles
180o
(90o
90o)
A 1/2 turn is ______.
half turn
2 right angles
____________.
14
Angles, Turns and Right Angles
(90o
90o
90o)
270o
A ¾ turn is ______.
3 right angles
three -quarter
____________.
15
Angles, Turns and Right Angles
(90o
90o
90o
90o)
360o
A one turn is ______.
one turn
4 right angles
____________.
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