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Distance to Centre = 212.13 m

Explanation:

Sides of a square are always the same. To obtain the distance to the centre of the pitch from any of the four corners :

The distance to the centre will be the the diagonal ÷ 2

Diagonal of a square : √2 * a

Where a = side length

Diagonal = √2 * 300

Diagonal = 424.26

Midpoint = diagonal /2

Midpoint or centre = 424.26 / 2

= 212.13 m