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READ AND UNDERSTAND THE SITUATION BELOW AND ANSWER THE QUESTIONS.
Twin brothers, Ian and Ivan are positioned on different platforms. If Ian is standing on a flat plot and is looking at Ivan who is on a high platform and angle is formed above the horizontal, Meanwhile, Ivan would see his brother at an angle below the horizontal.

QUESTION:
1. What do you think is the difference of the angles illustrated on different perspective?

2. What is the angle formed above the horizontal line?

3. What is the angle formed below the horizontal line?​​