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Question
Find the measure of the angle shown in figure. (First estimate with your eyes and then find the actual measure with a protractor).
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Solution
On observing with eyes - 135°
On measuring with protractor - 135°
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Find the angle measure between the hands of the clock in figure :
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| 6.00 p.m. |
Measure and classify each angle :

|
Angle |
Measure |
Type |
|
∠AOB |
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∠AOC |
|
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∠BOC |
|
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∠DOC |
|
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∠DOA |
|
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∠DOB |
|
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Which part of the protractor must be placed exactly on the vertex of the angle?

