Question

B
1.1 Directed Angles:
Consider the
ray
ОА. . Rotate
it about O till it
takes the position
OB as shown in
Fig. 1.3. Then
angle so obtained
due to the rotation
O
is called directed
angle AOB.
AOB. We
Fig. 1.3
define the notion
of directed angle as follows:
A​

Answer 1

Answer:

where is figure?

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Answer 2

Answer:

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