nunnblaze nunnblaze
  • 17-03-2015
  • Mathematics
Answered

HOW DO I FIND THE PERIMETER OF A SEMICIRCLE WITH A RADIUS OF 9MM ?



Answer :

secret13 secret13
  • 17-03-2015
Perimeter = 2 × π × r

Perimeter = 2 × 3.14 × 9

Perimeter = 56.52

Perimeter = 56.52 ÷ 2

Perimeter = 28.26

The perimeter of a semicircle with a radius of 9mm is 28.26
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Jenson Jenson
  • 17-03-2015
PI times diameter = 3.14 * ( 2*9mm) /2 = 28.27433388 mm this is the correct answer
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