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Measure and classify each angle :
"
To do:
We have to measure and classify each angle.
Solution:
Using Protractor,
The measure of $\angle AOB$ is $40^o$ and it is an acute angle.
The measure of $\angle AOC$ is $125^o$ and it is an obtuse angle.
The measure of $\angle BOC$ is $85^o$ and it is an acute angle.
The measure of $\angle DOC$ is $95^o$ and it is an obtuse angle.
The measure of $\angle DOA$ is $140^o$ and it is an obtuse angle.
The measure of $\angle DOB$ is $180^o$ and it is a straight angle.
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