yuliana12345ceowi26r
yuliana12345ceowi26r yuliana12345ceowi26r
  • 01-11-2018
  • Mathematics
contestada

if the perimeter is 74mm and the width 16mm what is the length

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cjzelaitis cjzelaitis
  • 01-11-2018
P=2w+2l
74=2(16)+2l
74=32+2l
42=2l
21=l

The length is 21 mm.
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dostmohammadafzaly
dostmohammadafzaly dostmohammadafzaly
  • 01-11-2018

p=2×W+2×L ( in Rectangle or square) ⇒74=2×16+2×L ⇒ 74-32=2×L⇒ 42=2×L⇒ L=21mm

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