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Question
Fill in the blanks with acute, obtuse, right or straight:
An angle whose measure is less than that of a right angle is ______.
Options
acute angle
obtuse angle
right angle
straight angle
Solution
An angle whose measure is less than that of a right angle is acute angle.
Explanation:
An acute angle measures less than 90°, making it smaller than a right angle, which exactly measures 90°.
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Measure and classify each angle :
|
Angle |
Measure |
Type |
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∠AOB |
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∠AOC |
|
|
|
∠BOC |
|
|
|
∠DOC |
|
|
|
∠DOA |
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|
∠DOB |
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