## 5. Emily had a play yard for her daughter Grace. It was shaped like a quare and had an area of 100 squar feet. What is the perimeter of the

Question

5. Emily had a play yard for her daughter Grace. It was shaped like a quare and had an area of 100 squar feet. What is the perimeter of the play yard? A. 10 feet C. 30 feet B. 20 feet D. 40 feet​

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3 years 2021-09-05T12:38:37+00:00 1 Answers 0 views 0

D    perimeter = 40 ft

Step-by-step explanation:

area square = s · s   = s²

preimeter square = s+s+s+s  = 4s

Given area = 100 ft²

area square   = s²

√area square   =  s

perimeter = 4s

perimeter = 4 · (√area square)

perimeter = 4 · (√100)

perimeter = 4 · (10)

perimeter = 40 ft
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