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प्रश्न
Measure and classify each angle :
|
Angle |
Measure |
Type |
|
∠AOB |
|
|
|
∠AOC |
|
|
|
∠BOC |
|
|
|
∠DOC |
|
|
|
∠DOA |
|
|
|
∠DOB |
|
|
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उत्तर
|
Angle |
Measure |
Type |
|
∠AOB |
40° |
Acute |
|
∠AOC |
125° |
Obtuse |
|
∠BOC |
90° |
Right |
|
∠DOC |
90° |
Right |
|
∠DOA |
140° |
Obtuse |
|
∠DOB |
180° |
Straight |
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संबंधित प्रश्न
How do we make equal angles?
Fill in the blanks with acute, obtuse, right or straight:
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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 ______.
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 :
 |
| 6.00 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?
Which part of the protractor must be placed exactly on the vertex of the angle?
An angle opens towards the right. After placing the vertex correctly, you align the bottom arm with the baseline. Which scale will you most likely use?
A 360° rotation is equivalent to how many straight angles (180°)?
A straight angle is geometrically equivalent to which fraction of a full circle rotation?
