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A walkway forms one diagonal of a square playground. The walkway is 30 m long. How long is a side of the playground?
Each side of the playground is m.
(Round to the nearest meter as needed.)

Answer :

Answer:

Step-by-step explanation:

a² + b² = c²

or in the case of a square where a and b are identical

2a² = c²

a = √(c²/2)

a = √(30²/2)

a = √450

a = 21.213203...

a = 21 m

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