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Marizza181 [45]
3 years ago
11

A square has an area of 81 cm2. Find the perimeter of the square

Mathematics
2 answers:
cestrela7 [59]3 years ago
4 0

Area = side²

=> 81cm² = side ²

=> √81cm² = side

=> 9cm = side

Perimeter = 4 × side

=> Perimeter = 4 × 9cm

=> Perimeter = 36cm

Jlenok [28]3 years ago
3 0

Step-by-step explanation:

here \: is \: your \: solution :  -  \\  \\ Given :- \\  \\  =  > area \: of \: square \:  = 81cm {}^{2}  \\  \\  =  > we \: need \: to \: find \: perimeter \\  \\ for \: this \: we \: have \: to \: find \: its \: side. \\  \\  =  > area \: of \: square \:  = side { }^{2}  \\  \\  =  > side {}^{2}  = 81cm {}^{2}  \\  \\  =  >  \: side \:  =  \sqrt{} 81cm \\  \\  =  > side =  \sqrt{9 \times 9} \\  \\  =  > side \:  = 9 \: cm \\  \\ now \: we \: can \: find \: (perimeter) \\  \\  =  > perimeter \: of \: square \:  = 4 \times side \\  \\  =  > perimeter = (4 \times 9 )cm \\  \\  =  > perimeter \: of \: square = 36cm \\  \\ HOPE \:  IT \:  HELPS \:  (. ❛ ᴗ ❛.)

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