Answer:
If 1 is correct, then 3 is correct.
In my technical documentation I use all 4 forms thus:
1. In the above picture.
2. Please see the picture above.
3. In the below picture.
4. Please see the picture below.
Step-by-step explanation:
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80
Similar shapes have congruent angles.
The sum of the angles of a quadrilateral is 360°
360 - 100 - 120 - 60 = 80
S
