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

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

User Bibi Tahira
by
8.0k points

2 Answers

6 votes
PI times diameter = 3.14 * ( 2*9mm) /2 = 28.27433388 mm this is the correct answer
User Shabnam
by
7.7k points
3 votes
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
User Sajida
by
8.3k points
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