A square tile has a blue border surrounding a pink square. The tile has length 500 mm to the nearest mm.
The pink square has length 400 mm to the nearest mm.

Calculate the lower and upper bounds of the area of the blue border.

nlgqer

step-by-step

6 cm

step-by-step explanation:

486in is correct

step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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