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Question
Measure the angle given below using the Protractor and write down the measure.
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Solution
45° acute angle
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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 |
|
|
In the units table, what is the conversion for 1′ (one minute)?
A 360° rotation is equivalent to how many straight angles (180°)?
