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Question
Measure the angle given below using the Protractor and write down the measure.
Solution
From left to right: First angle (right angle) = 60º
Second angle (obtuse angle) = 130º
Third angle (obtuse angle) = 90º
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| 9.00 a.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 |
|
|
