What is the perimeter of a square, if its area is 400sq-m?

What is the perimeter of a square, if its area is 400sq-m?

  1. a) 40m
  2. b) 80m
  3. c) 20m
  4. d) 20sq-m

From the BREB Assistant Enforcement Coordinator 2021 – Preliminary exam, question 20 of 59.

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