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प्रश्न
Fill in the blanks with acute, obtuse, right or straight:
When the sum of the measures of two angles is that of a right angle, then each one of them is ______.
विकल्प
acute angle
obtuse angle
right angle
straight angle
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उत्तर
When the sum of the measures of two angles is that of a right angle, then each one of them is acute angle.
Explanation:
An angle smaller than a right angle is called an acute angle. These are acute angles.
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संबंधित प्रश्न
How do we make equal angles?
How can you make your own angle tester?
Go around with your tester and draw here those things in which the tester opens like the letter L. Are you sure they are all right angles?
From these two angles which has larger measure? Estimate and then confirm by measuring them.
 |
 |
Find the measure of the angle shown in figure. (First estimate with your eyes and then find the actual measure with a protractor).
Find the angle measure between the hands of the clock in figure :
 |
| 9.00 a.m. |
Find the angle measure between the hands of the clock in figure :
 |
| 1.00 p.m. |
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?
Measure and classify each angle :
|
Angle |
Measure |
Type |
|
∠AOB |
|
|
|
∠AOC |
|
|
|
∠BOC |
|
|
|
∠DOC |
|
|
|
∠DOA |
|
|
|
∠DOB |
|
|
A straight angle is geometrically equivalent to which fraction of a full circle rotation?
