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Question
Fill in the blanks with acute, obtuse, right or straight:
When the sum of the measures of two angles is that of a straight angle, and if one of them is acute then the other should be ______.
Options
acute angle
obtuse angle
right angle
straight angle
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Solution
When the sum of the measures of two angles is that of a straight angle, and if one of them is acute then the other should be obtuse angle.
Explanation:
If an angle is larger than a right angle but less than a straight angle, it is called an obtuse angle. These are obtuse angles.
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Investigate
In the given figure, the angle measures 30°. Look at the same figure through a magnifying glass.
- Does the angle become larger?
- Does the size of the angle change?
