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The radius of a semicircle is 9.1 centimeters. What is the semicircle's perimeter?

The radius of a semicircle is 9.1 centimeters. What is the semicircle's perimeter?
asked 216k views
1 vote
The radius of a semicircle is 9.1 centimeters. What is the semicircle's perimeter?

asked
User Realuser
by
8.1k points

1 Answer

11 votes

Answer:

46.77 cm

Explanation:

Perimeter of the semicircle = Circumference + 2r

  • πr + 2r = r (π + 2)
  • 9.1 (3.14 + 2)
  • 9.1 (5.14)
  • 46.77 cm
answered
User Userxyz
by
7.5k points
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