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1. Read the question carefully to UNDERSTAND the problem: What you need to find out, what information you already know.

2. Recall the formulae you think would be useful to solve such problem.

3. Check the "FINAL ANSWER".

4. Check the steps:

1. Are the steps clear?

2. Are the relevant angle properties clearly written?

3. Suggest areas for improvement, if any.

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Instructions to post in your group

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Class Demonstration Q6 INTERIOR angle method

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Class Demonstration Q6 INTERIOR angle method

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Indicate your GROUP number as the title of the post.

Ensure it is the BEST solution in the group to be presented to the class.

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Class Demonstration Q6 EXTERIOR angle Method

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Class Demonstration Q6 EXTERIOR angle Method

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Using exterior angles to solve the problem

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1. The given info is organised clearly.
2. The equation is clearly written.
3. Why the degree unit goes missing halfway solving the equation?

# data[].attributes.custom_properties.oLacRuzU
No angle properties required.
The formula is clearly stated.

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Group 1 by Pin Jing

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Grp 3( don't mind why I put in another question coz no space)

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Grp 3( don't mind why I put in another question coz no space)